[Q] WiFi Scanning every 2-3 seconds, HELP!!! - Fascinate Q&A, Help & Troubleshooting

As the title said, my Verizon Fascinate scans WiFi every 2-3 seconds and a MAJOR drain in my battery. I believe it started when I flashed EH03 radio, but not really sure if that's the main issue. I have TSM Resurrection 2.1 ROM installed. My kernel is right now geewiz-2.5-kernel (updated on 1/22/12) but I also used KGB-EH03-FA16 Kernel with the same problem. What could be causing this and what can I do to fix it?
Please help!!!

You can set your wifi scan interval in the build.prop, I know there are other ways to do it too. A quick googling should yield a more helpful answer regarding all the ways it can be done.
I thought it only scanned when it's turned on and not already connected to a network though, are you turning it off when you're not using it? I guess I can't really see how else it would be draining your battery.

Turn off WIFI when not needed
In notification bar
Sent from my SCH-I500 using XDA App

k_nivesout said:
You can set your wifi scan interval in the build.prop, I know there are other ways to do it too. A quick googling should yield a more helpful answer regarding all the ways it can be done.
I thought it only scanned when it's turned on and not already connected to a network though, are you turning it off when you're not using it? I guess I can't really see how else it would be draining your battery.
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Click to collapse
Thanks! I will look up the build.prop solution to wifi scan issue. The problem is that it scans continuously regardless of whether it's connected to any network or not. And yes, I have to keep it turned off when I'm not using it.
*update* I checked the build.prop setting and it was set for 120. I'm assuming this is in seconds so shouldn't the wifi should only scan every 2 minutes??? I changed the setting to 600s=10min, but it still scans continuously What's going on???

You're correct, the interval you see in the build.prop is in seconds. If that isn't helping then I'm not really sure.. How can you tell it's continuously scanning? Is it an app you're using that shows this?
Sent from my SCH-I500 using Tapatalk

k_nivesout said:
You're correct, the interval you see in the build.prop is in seconds. If that isn't helping then I'm not really sure.. How can you tell it's continuously scanning? Is it an app you're using that shows this?
Sent from my SCH-I500 using Tapatalk
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The little wifi icon in the status bar keeps going on and off. And when I tried to used the market app, it constantly said I needed a wifi connection.
Anyways, after some additional investigation, I tried turning off and resetting my wireless router - and it worked!!! I'm not sure if that was the only reason for continuous wifi scan, but at least it's not scanning every 2-3 secs now. Well, it hasn't for the last 24 hours, so hopefully it will stay that way

Glad it's sorted! I couldn't really tell from your posts exactly what was happening, but if it's doing that when you have wifi on and (hopefully) connected, then it sounds like more an issue with your wifi connection itself as opposed to just the phone's.
About the wifi scan interval in the build.prop, I believe that just refers to how often it will look for a connection when wifi is on, but not connected to a network.

k_nivesout said:
Glad it's sorted! I couldn't really tell from your posts exactly what was happening, but if it's doing that when you have wifi on and (hopefully) connected, then it sounds like more an issue with your wifi connection itself as opposed to just the phone's.
About the wifi scan interval in the build.prop, I believe that just refers to how often it will look for a connection when wifi is on, but not connected to a network.
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Click to collapse
yes that is correct. I also agree with the issue being related to the wifi and not the phone. i hardly use the wifi on my phone but when i do, i never have that problem. i got grandfathered into the unlimited data from verizon, so wifi for me is pretty much useless.

Related

[Q] cyanogenmod 7 wifi issues

I recently flashed on cm7 on my aria. it is great but my data usage began shooting up. i realized it was due to the fact that everytime i lock my phone, it disables my wifi (i saw this because everytime i unlock im on 3g for a 1-2 seconds then i get on wifi so that means that the whole time my phone is locked it uses 3g data ) is there anyway i can prevent this from occurring??
Thanks,
Okachowwa
Menu -> settings -> wireless & networks -> wi-fi settings -> menu -> advanced -> wi-fi sleep policy -> never
I think that's it.
Sent from my Aria - CM7 Build 24
okachowwa said:
I recently flashed on cm7 on my aria. it is great but my data usage began shooting up. i realized it was due to the fact that everytime i lock my phone, it disables my wifi (i saw this because everytime i unlock im on 3g for a 1-2 seconds then i get on wifi so that means that the whole time my phone is locked it uses 3g data ) is there anyway i can prevent this from occurring??
Thanks,
Okachowwa
Click to expand...
Click to collapse
Have you checked the Wifi Settings to see which sleep option is selected? There is an 'Never' option which tells wifi to stay on even when the phone sleeps.
One thing I noticed its that if I leave my house I have to turn off wifi and turn it back on to find my router.
Sent from my Liberty using XDA App
klbmth said:
One thing I noticed its that if I leave my house I have to turn off wifi and turn it back on to find my router.
Sent from my Liberty using XDA App
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Click to collapse
yup...that's why you just turn your wifi off with the notification widget (very simple and painless might I add) if you know you're leaving the house...what's the point of having wifi enabled if you're not in range of your network? all it's going to do is drain your battery. i left my wifi enabled one day when i sent to work and within half the day i had ~12% battery life...definitely not good practice to leave it enabled that's my 2 cents, do as you wish though. to each his own.
klbmth said:
One thing I noticed its that if I leave my house I have to turn off wifi and turn it back on to find my router.
Sent from my Liberty using XDA App
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Click to collapse
Yup, I have the same issue with CM7 nightlies. This worked flawlessly in CM6 and stock2.1. So far there isn't a viable solution.
from the CM6.1.1 thread...
Q. How do I keep my wifi from going to sleep every time the screen shuts off?
A. There is a hidden feature that disables wifi sleep.
menu > Settings > Wireless & networks > wifi settings > menu (again) > advanced > Wi-Fi Sleep policy > Never > menu > Save
However: although you can keep the wifi service from sleeping, the wifi driver will still sleep on it's own after detecting no bus activity for a period of time.
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Click to collapse
mattbollenbach said:
from the CM6.1.1 thread...
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Click to collapse
I've made sure to set Wifi Sleep Policy to "Never" but that did not fix my wifi problems. What I see when I open Wifi Settings is a cycle of:
Code:
Scanning --> Connecting --> Disconnected... Scanning, etc
When I look in logcat it shows it attemping (in vain) to authenticate against the last wifi network I was using -- even though it is no longer in range (and clear across town). In a nutshell it is refusing to recognize the actual nearby network UNTIL I toggle wifi settings.
I've had the same behavior on FR008 and the stock ATT 2.1 load as well. When Wifi is in that on but not really connected state some apps can wake it up...the default browser usually will, but Listen would not. I just gave up and only turn on wifi when I need it.
kinggrowler said:
I've made sure to set Wifi Sleep Policy to "Never" but that did not fix my wifi problems. What I see when I open Wifi Settings is a cycle of:
Code:
Scanning --> Connecting --> Disconnected... Scanning, etc
When I look in logcat it shows it attemping (in vain) to authenticate against the last wifi network I was using -- even though it is no longer in range (and clear across town). In a nutshell it is refusing to recognize the actual nearby network UNTIL I toggle wifi settings.
Click to expand...
Click to collapse
What is the point of having wifi set to ON when you are not in range of a network? Hence why, if you are using CM7 or CM6, you should utilize the notification widget and turn wifi off if you know you're leaving the area of your network. It's simple. Things aren't ALWAYS going to work how YOU want them to work. Thing will not always be automatic. I think I quote attn1 when I say this, just because it doesn't work how you want it to work, does not mean it is broken.
zervic said:
What is the point of having wifi set to ON when you are not in range of a network? Hence why, if you are using CM7 or CM6, you should utilize the notification widget and turn wifi off if you know you're leaving the area of your network. It's simple. Things aren't ALWAYS going to work how YOU want them to work. Thing will not always be automatic. I think I quote attn1 when I say this, just because it doesn't work how you want it to work, does not mean it is broken.
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Click to collapse
Well, just because people don't work exactly like you work, does not mean they are doing it wrong. If something is broken I'm going to call it out. I might be incorrect, but let's be clear: you aren't questioning that wifi in CM7 isn't working the way it did in CM6, you are questioning my behavior -- which is a weak argument.
I guess you don't understand the issue, so I'll spell it out:
Wifi worked flawlessly and automatically for me in stock 2.1 AND CM6. This automatic behavior does not work in CM7. Manually toggling something that simply "just worked" before is a regression, not a feature. Hence the reason I point it out -- the devs can't fix something unless they know it's broken, and I seriously doubt the devs are able to test all/every permutation. I have nothing but respect for the work they do, thus my very respectful tones in my earlier posts. I've had no indication that the devs are unwilling to get feedback about their work.
You asked a question though, and here is the answer:
I leave Wifi on all the time because I'm a consultant -- I work in many different locations throughout the week, travelling the country. I have dozens of wifi networks saved on my phone, and it is useful for me to have my phone automatically jump on the correct, nearest network. I'd rather use free wifi instead of paying AT&T for data charges. It is not always possible for me to remember I'm in a location with a known wifi network, or to remember to manually toggle wifi settings: it is useful for me to have this happen in the background. Sometimes I'm on a call, sometimes I'm heading into a meeting and I'd rather not mess with my phone. I want wifi to be on all time, scanning for the correct network, and jumping on it when it's in range.
Outrageous, right?! Not actually -- this is the existing behavior in CM6 and stock 2.1. From my standpoint, wifi just worked -- I didn't have to think about it, didn't have to manually toggle something to prevent AT&T data charges.
This is desired behavior for me, and I'm happy with rolling back to CM6 to get it. I understand that _you_ don't need this behavior, but that doesn't mean it's wrong. It just means the world is bigger than you realized.
And yes: wifi in CM7 (beta) is currently broken. Read the threads. Many people are having problems with it.
zervic said:
yup...that's why you just turn your wifi off with the notification widget (very simple and painless might I add) if you know you're leaving the house...what's the point of having wifi enabled if you're not in range of your network? all it's going to do is drain your battery. i left my wifi enabled one day when i sent to work and within half the day i had ~12% battery life...definitely not good practice to leave it enabled that's my 2 cents, do as you wish though. to each his own.
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That's a good tip, I feel kind of dumb for not thinking about it lol and I also agree that it is good practice to do so. I just wanted to point it out in case a dev was going through this thread which is relevant to the topic.
Sent from my Liberty using XDA App
kinggrowler said:
Well, just because people don't work exactly like you work, does not mean they are doing it wrong. If something is broken I'm going to call it out. I might be incorrect, but let's be clear: you aren't questioning that wifi in CM7 isn't working the way it did in CM6, you are questioning my behavior -- which is a weak argument.
I guess you don't understand the issue, so I'll spell it out:
Wifi worked flawlessly and automatically for me in stock 2.1 AND CM6. This automatic behavior does not work in CM7. Manually toggling something that simply "just worked" before is a regression, not a feature. Hence the reason I point it out -- the devs can't fix something unless they know it's broken, and I seriously doubt the devs are able to test all/every permutation. I have nothing but respect for the work they do, thus my very respectful tones in my earlier posts. I've had no indication that the devs are unwilling to get feedback about their work.
You asked a question though, and here is the answer:
I leave Wifi on all the time because I'm a consultant -- I work in many different locations throughout the week, travelling the country. I have dozens of wifi networks saved on my phone, and it is useful for me to have my phone automatically jump on the correct, nearest network. I'd rather use free wifi instead of paying AT&T for data charges. It is not always possible for me to remember I'm in a location with a known wifi network, or to remember to manually toggle wifi settings: it is useful for me to have this happen in the background. Sometimes I'm on a call, sometimes I'm heading into a meeting and I'd rather not mess with my phone. I want wifi to be on all time, scanning for the correct network, and jumping on it when it's in range.
Outrageous, right?! Not actually -- this is the existing behavior in CM6 and stock 2.1. From my standpoint, wifi just worked -- I didn't have to think about it, didn't have to manually toggle something to prevent AT&T data charges.
This is desired behavior for me, and I'm happy with rolling back to CM6 to get it. I understand that _you_ don't need this behavior, but that doesn't mean it's wrong. It just means the world is bigger than you realized.
And yes: wifi in CM7 (beta) is currently broken. Read the threads. Many people are having problems with it.
Click to expand...
Click to collapse
fyi CM6 & 2.1 != CM7. Your argument is null & void.
Also, being a "consultant" and the very important man you are, flashing a rom that's not even in beta stages yet probably isn't the best idea you've ever had.
zervic said:
Also, being a "consultant" and the very important man you are, flashing a rom that's not even in beta stages yet probably isn't the best idea you've ever had.
Click to expand...
Click to collapse
Why do you remind us that the rom is in a beta stage? "Beta" implies it is not fully functional, but your argument all along has been that it works perfectly....
Look, it's clear you haven't actually understood any of my posts. I'm highlighting error messages or erratic behavior I see in logcat running CM7. I've posted what I've seen so the devs can take action, or not, as they choose. Since you aren't in that audience I don't understand what your beef is.
Oh wait! Straw man arguments; personal attacks; logical fallacies: I've been dealing with either a highschool student or a troll - not sure which.
zervic said:
fyi CM6 & 2.1 != CM7. Your argument is null & void.
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Click to collapse
...although I have a strong suspicion.
kinggrowler said:
Why do you remind us that the rom is in a beta stage? "Beta" implies it is not fully functional, but your argument all along has been that it works perfectly....
Look, it's clear you haven't actually understood any of my posts. I'm highlighting error messages or erratic behavior I see in logcat running CM7. I've posted what I've seen so the devs can take action, or not, as they choose. Since you aren't in that audience I don't understand what your beef is.
Oh wait! Straw man arguments; personal attacks; logical fallacies: I've been dealing with either a highschool student or a troll - not sure which.
...although I have a strong suspicion.
Click to expand...
Click to collapse
First of all:
attn1 said:
Just because something does not work they way you'd like it to doesn't mean you've discovered a bug.
Click to expand...
Click to collapse
That being said. Beta does NOT necessarily imply that thing are not fully functioning, it simply implies that it hasn't been put into RC or stable. You can have a fully functioning beta program. HOWEVER, it may not be working properly. But creating a thread about an issue that's been brought up 20+ times now is pointless. I'm PRETTY sure the devs know about the issue, should it actually be an issue. Now that I just wasted another 15 seconds of my life, i'm going to casually /part from this thread and I'll end my post with this quote again, in case you didn't catch it the first time.
attn1 said:
Just because something does not work they way you'd like it to doesn't mean you've discovered a bug.
Click to expand...
Click to collapse
This is for OP and very important man of the day, kinggrowler:
http://forum.xda-developers.com/showpost.php?p=11171075&postcount=1054
and i'll even quote it directly for you:
attn1 said:
There are no broad wifi issues to resolve, and I do not plan to change the wifi driver one iota. I am using the one that works right for most people, and flawlessly for me.
If you are not having such luck, then you need to look at your access point if you have already wiped data.
Really, the constant carping about wifi is absolutely pointless.
Click to expand...
Click to collapse
I believe the proper thing for me to say right now would be:
game. set. match.
Me too. I can't roam between networks, either. I have to disable and re-enable the wifi each time.
zervic said:
...what's the point of having wifi enabled if you're not in range of your network?
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Click to collapse
1) Because Google Maps uses known wifi hotspots to help establish your location.
2) So that you don't have to keep toggling wifi on and off when moving between hotspots (or home and work, for example).
3) To use the network notification feature (aka "notify me when an open network is available").
HTH
Edit: seems to be fixed in RC3!
zervic said:
What is the point of having wifi set to ON when you are not in range of a network? Hence why, if you are using CM7 or CM6, you should utilize the notification widget and turn wifi off if you know you're leaving the area of your network. It's simple. Things aren't ALWAYS going to work how YOU want them to work. Thing will not always be automatic. I think I quote attn1 when I say this, just because it doesn't work how you want it to work, does not mean it is broken.
Click to expand...
Click to collapse
i have try everything and still same issues with wifi. and i change the radio ( baseband ). still i am thinking of uninstalling it bc i dont have wifi
Sorry to tell you but that was with the old wifi stuff (every nightly up to build 25), which I had no problem with. The RC/nightlies have new wifi data made by jznomoney, which I have on and off problems with. Its working for most people but there are a handful who are having problems. I flashed ladios' kernel and my wifi is doing a lot better with the new RC/nightlies.
Signatures are fancy.
kinggrowler said:
I've made sure to set Wifi Sleep Policy to "Never" but that did not fix my wifi problems. What I see when I open Wifi Settings is a cycle of:
Code:
Scanning --> Connecting --> Disconnected... Scanning, etc
When I look in logcat it shows it attemping (in vain) to authenticate against the last wifi network I was using -- even though it is no longer in range (and clear across town). In a nutshell it is refusing to recognize the actual nearby network UNTIL I toggle wifi settings.
Click to expand...
Click to collapse
I've noticed something similar with CM7 on my Aria. When I leave the house and come back it doesn't always connect automatically and it will enter into this cycle of scanning, connecting, disconnected.
I had to reboot the phone to get it to stop the cycle and stay connected. I don't use a lot of data anyway but I still prefer to use wifi when available. Interestingly just now it wouldn't even see any of my neighbor's wifi networks at all which is odd.

[Q] Hotspot not working CM7.1

Hi!
I've read through different posts, but I haven't got the answer to my question, which is:
I connect through CM7.1s WiFi tethering and I get internet access on my computer, but just a couple of minutes later it stops working (i.e the computer no longer connects, doesn't find hotspot), though the phone still tells me tethering is active. Disabling doesn't work, phone darkens the option all together, though still says it's active. Only reboot makes it idle again.
Known issue? Have I done something wrong? No problems at all with USB-teethering.
Thanks!
PS.
Running CM7.1 Stable
Same here
Has someone got an answer? Has it been fixed in CM 7.2 or later?
It's irritating.. sometimes it works for 2mins other times for 30mins. When it stops you have to restart the phone because it cannot disable. The Checkbox is just disabled and when I disconnect while it's working, it is disabled almost immediately. I've even left it over night to "disable" just to see what happens. Nothing... It's a pity. Such a great mod with such a great drawback... I hope it gets fixed!
Any help, advice, tips, etc appreciated! :good:
2qf4 said:
Hi!
I've read through different posts, but I haven't got the answer to my question, which is:
I connect through CM7.1s WiFi tethering and I get internet access on my computer, but just a couple of minutes later it stops working (i.e the computer no longer connects, doesn't find hotspot), though the phone still tells me tethering is active. Disabling doesn't work, phone darkens the option all together, though still says it's active. Only reboot makes it idle again.
Known issue? Have I done something wrong? No problems at all with USB-teethering.
Thanks!
PS.
Running CM7.1 Stable
Click to expand...
Click to collapse
Have you tried the latest CM7.2 to see if it's been fixed?
Sent from my Transformer TF101 using xda app-developers app
I have WiFi issues too for example, my phones connected to WiFi then stop using my phone, when I wake it up after a while it won't connect and it won't even see my router any more, only a reboot will fix it.
Sent from my Legend using xda app-developers app

Keep WIFI on during sleep

I've been try to extend the life of my battery, and one of the things I have done is set the SETTINGS/WIFI/ADVANCED "keep WIFI on during sleep" to "never".
I make this change, but most times when I go back into the settings later on, it's changed back to "Always"
Anybody offer a clue as to why this might be happening?
Thanks.
greatcapp said:
I've been try to extend the life of my battery, and one of the things I have done is set the SETTINGS/WIFI/ADVANCED "keep WIFI on during sleep" to "never".
I make this change, but most times when I go back into the settings later on, it's changed back to "Always"
Anybody offer a clue as to why this might be happening?
Thanks.
Click to expand...
Click to collapse
no idea mate it shouldn't do as i have mine set to never and it stays like that, have you been flashing ROM's or anything like that maybe that could explain it!
No, not really.
The only thing I've done is rooted it. Apart from that, It's still got stock Samsung Rom on it.
Just checked again, and even tried setting it to "only when plugged in, but after 15 mins or so, it's back to "always" again.
greatcapp said:
No, not really.
The only thing I've done is rooted it. Apart from that, It's still got stock Samsung Rom on it.
Just checked again, and even tried setting it to "only when plugged in, but after 15 mins or so, it's back to "always" again.
Click to expand...
Click to collapse
sorry i cant be of any assistance to you mind doesn't do that,. maybe someone else might know?
jonny68 said:
sorry i cant be of any assistance to you mind doesn't do that,. maybe someone else might know?
Click to expand...
Click to collapse
For anyone else who might come across the same issue.
After doing a factory reset, and putting apps back on one at a time, I found out it was DoubleTwist Airsync, that was changing the "WIFI sleep" option.
Apparently, the developer knows this, but wants it to work that way.
So it's now gone for me
But you won't lose too much battery on an 7 hr sleep with the always on setting.
I go to sleep with my S3 on 98% and wake up with 92-94% battery left even with received messages from 3 email accounts and other notifications.
<------------------------------->
Sent from my S3 using Tapatalk
I keep mine on always. I lose 3% during an 8hr sleep and it'll automatically connect to my carrier data when my network is not in range. Sure beats turning it off and on a handful times a day.
Weird is that WiFi is active in either option you shoose during sleep. Even if you choose NEVER, open your battery use stats and you'll see that WiFi was active all the time during sleep. I cannot understand why is this issue so underrated here on XDA forums. Or is it some kind of misinterpreting from my side???
Moonsower said:
Weird is that WiFi is active in either option you shoose during sleep. Even if you choose NEVER, open your battery use stats and you'll see that WiFi was active all the time during sleep. I cannot understand why is this issue so underrated here on XDA forums. Or is it some kind of misinterpreting from my side???
Click to expand...
Click to collapse
Yup afaik, choosing never will produce a wakelock to check the phone state and keeping it on will cause it to constantly scan even if connected to a network. Both choices will eat up battery.
I see many threads suggesting to just manually turn it off, preventing scanning, wakelocks and syncing all together.
Sent from my GT-I9300 using Tapatalk 2
rab1412000 said:
Yup afaik, choosing never will produce a wakelock to check the phone state and keeping it on will cause it to constantly scan even if connected to a network. Both choices will eat up battery.
I see many threads suggesting to just manually turn it off, preventing scanning, wakelocks and syncing all together.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
So it is normal that if i choose Never in wifi sleep policy phone, i find the wifi always on in battery stats? This question is not so clear...
Is there any explanation of wifi toggles by author... Google?
Sent from my GT-I9300 using xda app-developers app
giovag7 said:
So it is normal that if i choose Never in wifi sleep policy phone, i find the wifi always on in battery stats? This question is not so clear...
Click to expand...
Click to collapse
I'm not so sure if you will see wifi in the battery stats as I think wifi processes are part of the Android system in settings >battery.
Sent from a Galaxy far, far away
So has this problem not been solved?
SlimJ87D said:
So has this problem not been solved?
Click to expand...
Click to collapse
i also have this problem with omega v34..i hope it will be fixed
I use the app keep Wifi alive. It pings my server to ensure I don't lose a connection. I the only thing I see missing with it is that my email sync stops until I go to mobile data.
Sent from my SGH-T999 using xda app-developers app

samsung galaxy s3 wifi not auto connect to home network

Please can anyone help.
Up till a couple of days ago my s3 would automatically connect to my wifi signal at home as soon as I walked into my house, haven't changed any thing but it no won't connect until either I reboot or switch wifi off and then back on again . Tried rebooting phone which works for the first connection but subsequently won't connect again after sleep or at least the phone not being used for a while. Also switching wifi off and back on again works but as before once wi fi shuts down it won't reconnect by just swiping the screen and taking the phone off of standby.
Hope that was clear enough lol
Many thanks Ian
hotlurve said:
Please can anyone help.
Up till a couple of days ago my s3 would automatically connect to my wifi signal at home as soon as I walked into my house, haven't changed any thing but it no won't connect until either I reboot or switch wifi off and then back on again . Tried rebooting phone which works for the first connection but subsequently won't connect again after sleep or at least the phone not being used for a while. Also switching wifi off and back on again works but as before once wi fi shuts down it won't reconnect by just swiping the screen and taking the phone off of standby.
Hope that was clear enough lol
Many thanks Ian
Click to expand...
Click to collapse
Its a well reported problem for some a search may find an answer .
jje
JJEgan said:
Its a well reported problem for some a search may find an answer .
jje
Click to expand...
Click to collapse
Reboot the modem/router and try again. If that doesn`t help press your wifi connection in settings and reinsert the password and reboot.
JJEgan said:
Its a well reported problem for some a search may find an answer .
jje
Click to expand...
Click to collapse
Yes I've found plenty of things relating to wifi issues on the phone but none specifically to this one so if anyone could help I would be grateful.
I assume you've tried forgetting the network and re-entering the details.
Also try playing with the Wi-Fi sleep policy, in the past this has caused some problems with the stability of the connection. Settings, Wi-Fi, menu, advanced.
Also it might be on the router side. Try changing the channel on the router, and if it's dual band set it to 2.4ghz instead of 5.
Sent from my GT-I9300 using Tapatalk 2
Back up data. Factory reset.
Update firmware.
Change kernel.
That's three possible fixes.
jje
Sent from my GT-I9300 using xda premium
Im getting very similar issues with my s3 trying to connect to a dlink router, works fine with the netgear one though. Did you manage to fix?
nadimsoze said:
I assume you've tried forgetting the network and re-entering the details.
Also try playing with the Wi-Fi sleep policy, in the past this has caused some problems with the stability of the connection. Settings, Wi-Fi, menu, advanced.
Also it might be on the router side. Try changing the channel on the router, and if it's dual band set it to 2.4ghz instead of 5.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
I cannot seem to get the WIFI Sleep to work at all. Even when set to NEVER on when asleep I can see in the battery stats that WIFI has stayed on the entire time. Any idea why this is?
can you tell us the ROM and kernel you are using (if you are using custom)? I have never had any issues with stock kernel myself.
also, did you hide your wifi SSID? in the past, it might cause some issues...

			
				
I was having the same problem, try this.. Setting - wifi - advanced - keep wifi on during sleep - Always.
I haven't noticed more battery use,
Sent from my GT-I9300 using xda premium
hotlurve said:
Please can anyone help.
Up till a couple of days ago my s3 would automatically connect to my wifi signal at home as soon as I walked into my house, haven't changed any thing but it no won't connect until either I reboot or switch wifi off and then back on again . Tried rebooting phone which works for the first connection but subsequently won't connect again after sleep or at least the phone not being used for a while. Also switching wifi off and back on again works but as before once wi fi shuts down it won't reconnect by just swiping the screen and taking the phone off of standby.
Hope that was clear enough lol
Many thanks Ian
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if you want another option besides backing up your data, doing a full wipe, and reloading your data, try a different kernel...easy fix that seems to fix these problems most of the time...the kernel is responsible for your wifi, gps, bluetooth, cpu, gpu, etc...so swapping it out should fix an issue like that

WiFi issue

Anyone else having WiFi issues?
I can connect to networks but I don't actually have internet access(I have tried on multiple networks, both secured and unsecured).
Any ideas?
Sent from my HTC6435LVW using xda app-developers app
rexdog1888 said:
Anyone else having WiFi issues?
I can connect to networks but I don't actually have internet access(I have tried on multiple networks, both secured and unsecured).
Any ideas?
Sent from my HTC6435LVW using xda app-developers app
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No issues for me, every network I connect to I access the internet fine.
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I rebooted and all is fine now.
Sent from my HTC6435LVW using xda app-developers app
I have had the same issue and it resolved after rebooting. But it came back once I let the phone idle for sometime. I have to restart the wifi for it to start working again!! I don't know much about this.. but its similar to the smartsync problem with One X.. except that the wifi disconnects every time the phone idles for a few minutes! Anyone else had this problem?
rexdog1888 said:
I rebooted and all is fine now.
Sent from my HTC6435LVW using xda app-developers app
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Try turning WiFi security off....
Sent from my One V using xda app-developers app
I had the same problem. Fixed it by turning off wifi, unchecking the "Use DLNA if DHCP is not available" setting, then turning wifi back on.
Faulty device
I tried all of those combinations but neither worked. Took the cell to a VZW store and they replaced it. Everything is good with this one, so the old was just faulty. Are you guys using any screen protectors or cases?
iissmart said:
I had the same problem. Fixed it by turning off wifi, unchecking the "Use DLNA if DHCP is not available" setting, then turning wifi back on.
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rexdog1888 said:
Anyone else having WiFi issues?
I can connect to networks but I don't actually have internet access(I have tried on multiple networks, both secured and unsecured).
Any ideas?
Sent from my HTC6435LVW using xda app-developers app
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Click to collapse
When this happens, go to advanced Wifi settings and check your IP. Most likely you have a 169. address and no useful default gateway. This generally happens when DLNA IP option is enabled and your DHCP server isn't fast enough for the [bad] rom settings provided by HTC. If that's the case, the just disable that option and cycle Wifi.
im having a problem as well just got my dna yesterday and it seems when its asleep for a bit i awake it and then disconnects flashes to 4g connected back to my network but i have no activity at that moment then i have turn wifi off and on to get it back
i know its not my network no other problems with over 5 other devices and never had a problem with any phone for years
My girlfriend has this issue with her DNA. They replaced it with a brand new one, same issue. We have a wireless router that has 3 laptops, another phone, two tablets plus my friends phones and tablets when they come over, no issues for anyone. But the two DNA's we have tried, do.
Connects, and then it says it is connected but stops working after a short time. Shows that it is connected but anything that requires internet sits there spinning. Disable Wifi and it kicks over to 4G and emails and stuff starts flooding in. Go into Wifi settings and turn it back on, and it seems like it keeps turning itself on and off, like it is stuck in a loop.
Both DNA's, same exact issue. BOth stock, non-root, both have had hard resets, nothing seems to fix it. Some searching on Google says that the issue, while not common, it's all that un-common either. Seems to be an issue with the phone itself.
SquireSCA said:
My girlfriend has this issue with her DNA. They replaced it with a brand new one, same issue. We have a wireless router that has 3 laptops, another phone, two tablets plus my friends phones and tablets when they come over, no issues for anyone. But the two DNA's we have tried, do.
Connects, and then it says it is connected but stops working after a short time. Shows that it is connected but anything that requires internet sits there spinning. Disable Wifi and it kicks over to 4G and emails and stuff starts flooding in. Go into Wifi settings and turn it back on, and it seems like it keeps turning itself on and off, like it is stuck in a loop.
Both DNA's, same exact issue. BOth stock, non-root, both have had hard resets, nothing seems to fix it. Some searching on Google says that the issue, while not common, it's all that un-common either. Seems to be an issue with the phone itself.
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I had the exact same problem when stock. I have not had that issue since I flashed my first custom rom. Clearly it is an issue with the stock rom.
rainabba said:
I had the exact same problem when stock. I have not had that issue since I flashed my first custom rom. Clearly it is an issue with the stock rom.
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That's my fear, that in order to "fix" the DNA, I have to void the warranty. If it were my phone I would be fine with that, but she is hesitant to...
SquireSCA said:
That's my fear, that in order to "fix" the DNA, I have to void the warranty. If it were my phone I would be fine with that, but she is hesitant to...
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it really isn't a big deal. If you have to return it for any reason bricking it or reverting it to stock isn't a problem and in all the years I've been working with Android, out of tens of thousands of users that I've had exposure to, I've never once have i heard of a carrier denying warranty work because of a phone being modified. they're generally just not smart enough to even know how to check if they even care to check. The only thing that I've heard about is people walking into store and telling them that the phone has been modified. In that case they will use it against you. Anyway you're better off with a third party ROM and a better kernel for this phone.
Used FXR from the market and fixed my wifi issues.
Sent from my HTC6435LVW using xda app-developers app
Went back to vzw, they said that HTC knows of the problem, it is software related but no eta on the fix. Not wishing for another thunderbolt debacle, she exchanged it for a RAZR HD.
rainabba said:
When this happens, go to advanced Wifi settings and check your IP. Most likely you have a 169. address and no useful default gateway. This generally happens when DLNA IP option is enabled and your DHCP server isn't fast enough for the [bad] rom settings provided by HTC. If that's the case, the just disable that option and cycle Wifi.
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Click to collapse
THIS.
I tried it exactly how you said to, disabled the DLNA option, turned off then on my Wi-Fi, and boom, started working again. I thought my phone could have been faulty, but I bet anyone who tries this will see their issue fixed.
NotoriousNeo said:
THIS.
I tried it exactly how you said to, disabled the DLNA option, turned off then on my Wi-Fi, and boom, started working again. I thought my phone could have been faulty, but I bet anyone who tries this will see their issue fixed.
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I'm having the same problem but the DLNA option was already turned off by default. Wifi works right after a restart and then stops working a short time later. Once it stops working, I get a blank screen when I try to view the available wireless networks, even though this screen was populated with multiple networks previously. Frequently, I get a "Process com.android.settings isn't responding" message. I had these exact issues with my first DNA and Verizon sent me a replacement. Same issues with the replacement. Anyone else experiencing this?

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