[Q] WiFi Dropping Intermittently - Galaxy S II Q&A, Help & Troubleshooting

Extremely intermittent and hard to pin point problem I'm having with my I9100 and wifi...
I am using the Chameleon ROM 3.0.2 with Dorimanx 8.16, but this also occurred with Chameleon 3.0.1 and Jeboo 2.1.
This has only happened in the last few weeks, and there have been no changes to the phone or my home network to bring this on, and everything worked absolutely fine before. I decided to spend some time this afternoon trying to sort this out, and I've gotten no where.
On a fresh boot I can connect to wifi fine, and provided the phone stays awake, I can use the internet fine. But when I put my phone down and leave it to go into sleep, often when I wake the device back up, the wifi will be connected, but the signal icons will have turned grey, and nothing will work. Sometimes when this happens the phone will automatically drop and reconnect to the wifi, and others it will remain stuck and I have to reboot the phone. But sometimes this doesn't occur at all, and the phone wakes up and wifi works fine.
I have definitely checked the Advanced Wifi settings and the sleep policy is set to Never.
When this happens, the data connection doesn't take over, it's as if the wifi remains connected but somehow decides to refuse all connections. SMS and phone calls still work fine.
I have done several factory resets, and I am currently running the phone with nothing but the default apps in Chameleon 3.0.2.
I just signed into my Google account, opened Google Play to update things like Hangouts, Maps, Search etc, and I hit Update all, then locked my phone and put it down. When I picked it up again not 3 minutes later, all the updates had failed as the wifi had crashed(?).
I have tried another router, and it still happens. All other devices connected to either router have been fine the entire time (my laptop, desktop PC, Samsung Smart TV, Nook color with CM7 and an Amazon Kindle).
I have seen a couple of other threads about this, but none of them had any answers in, they were just left with people asking about it and not getting anything concrete. Is this going to be some kind of hardware problem and the only fix is a new device?
I'm at my wit's end here, it's driving me up the wall, I'd really appreciate any ideas.
EDIT: Being an eejit, I only just found this thread http://forum.xda-developers.com/showthread.php?t=2161978 I can't seem to delete this post, so I'll just leave my apologies here, please can an admin/mod delete this thread? I'll post in the other thread I linked to above.

Related

[Q + Possible Answer] Wifi Connection Problems

Hi All,
I just wanted to share with you a solution I've come across to fix a Wifi problem.
The Problem:
After several weeks of perfect performance, my phone became unable to connect to my routers at home. These are Netgear routers.
The only thing I can think of that triggered this issue was flashing a new ROM which included a Radio update. However I think I had this just before flashing the ROM!
But effectively, I was not able to connect to a wireless router. The phone would find the network, allow the key to be entered and would authenticate and try and obtain an IP Address. At this point, it would fail and disconnect. It would just loop like this.
Solution
I tried all sorts. Restarted the router, reflashed my ROM, flashed many earlier radio images, did a full factory reset etc... but each time I just couldn't connect.
Giving up, I rang Orange UK to get a replacement handset. After speaking to the tech guy, he told me he was going to send some settings to my phone... After a little discussion I still couldn't get out of him what he was actually sending. It wasn't APN settings, but as I told him, he doesn't have my Router settings so what on earth can he send to my phone to fix the problem?
However, after he sent the stuff, my phone hung up much to my annoyance!
But I thought, what the hell, so I turned my router off, turned my phone off, removed the battery, waited the magic 30 seconds ( I know, but I was humouring the guy before I rang back to complain about wasting my time )
On turning my phone back on, and turning my router back on... everything worked!!!
So, if you're having a Wifi issue, ring up your operator and see if they have some magic settings that they can send you, and at the very least, turn everything off, and remove the battery for 30 seconds and try again!
Hope this helps someone!
John

[Q] Couple Amaze Problems

Howdy! I peruse the forums quite a bit to figure out little fixes for my phone, but there are a couple problems that I haven't quite been able to find proper solutions for.
The first problem deals with the phone randomly shutting down (usually only when it's in my pocket). I've seen other posts regarding the topic, but the OPs usually stated that simply holding the power button would effectively turn the phone back on, or that the phone doesn't shutdown but rather reboots. My phone completely shuts down and requires that I take the battery out, wait 10-15 seconds, put it back in, and then hold the power button for an extended period of time in order for the phone to start up. The battery doesn't get extremely hot. It's usually around ~33-35C when it does this, but when I look at some of the other posts with similar problems, their batteries are ranging withing ~38-42C. I have seen that it may be a faulty battery, as shown in the other posts, but as I mentioned my problem is slightly different.
The second problem deals with streaming videos on browsers. Before the ICS update, I was able to stream videos on any browser, but after that OTA update I cannot. I have tried multiple browsers, including Dolphin, Firefox (my main browser), and Opera. I heard it may have to do with flash not supporting android anymore (after 4.0.x, whereas I'm only running 4.0.3), but I have checked my phone and I have Flash 11.1 already installed. The settings on my browsers are to enable plug-ins on tap (means that I would tap a video to start it, right?).
Lastly, as of now, I'm having a WiFi issue. It's not so much of an issue as a hindrance, though. Basically, I'm pretty much always in a WiFi zone, either being at home or on campus. When I get home from uni, WiFi automatically connects, no problem. When I'm at the uni, it will connect as soon as I get on campus, but when I walk from building to building, it loses connection and makes me reconnect. I go to hit reconnect, and it demands some credential password which I have never set. If I hit forget so that I can forget and reconnect to the network, it wants me to put in my screen unlock pattern. I draw the pattern to unlock it, but then it sort of refreshes and my pattern is gone and it doesn't let me continue with the process, so I have to go back to the home screen, back into settings, and clear credentials. Some posts said to continue to input incorrect passwords to allow a credential storage password reset, but that did not work. Some posts said to clear credentials, so I do that, but then I have to continuously type my login information whenever I move from class to class, which gets pretty irritating. The only way to connect to the WiFi is by disabling and reenabling the WiFi. Like I said, it's not a huge issue, rather a hindrance.
As for my phone specs, I'm not really a super tech so I haven't messed with anything. The phone is not rooted and is running Android 4.0.3. It is, however, unlocked, and I'm running it on ATT's network if that makes a difference.
Let me know if I've posted in the wrong section or anything, and if I have, I apologize. I'm not one for posting on forums, rather one to creep around and hopefully find solutions.
Thanks for your time.
Hi there.
I also want to join this topic:
1. my HTC amaze also shuts down randomly.
2. but the main thing is: can anybody help me with this WiFi issue? I can connect and use WiFi in the street, at McDonald's, at different places with public WiFi, but when it comes to connect to WiFi at my home or at other places where the WiFi is PASSWORD PROTECTED, my phone jams the network and i have to turn off WiFi on the phone and restart the WiFi router to have everything working again.
Somebody, please help
thanks in advance.
Don't know if I'm allowed to do this, but bump!
Powstriker said:
Don't know if I'm allowed to do this, but bump!
Click to expand...
Click to collapse
this is out of question phone is good. there must be way to solve this WiFi issue
418 Replies but not a single instance of input? There has to be someone that knows something about this!
Powstriker said:
The first problem deals with the phone randomly shutting down (usually only when it's in my pocket). I've seen other posts regarding the topic, but the OPs usually stated that simply holding the power button would effectively turn the phone back on, or that the phone doesn't shutdown but rather reboots. My phone completely shuts down and requires that I take the battery out, wait 10-15 seconds, put it back in, and then hold the power button for an extended period of time in order for the phone to start up. The battery doesn't get extremely hot. It's usually around ~33-35C when it does this, but when I look at some of the other posts with similar problems, their batteries are ranging withing ~38-42C. I have seen that it may be a faulty battery, as shown in the other posts, but as I mentioned my problem is slightly different.
Click to expand...
Click to collapse
Since you are stock, the only thing being that your phone is unlocked, I would say this is either a config issue or a HW issue. The simplest thing to do is to clean the battery contacts, as there is a small chance that something got on them and is causing the battery to drop out. You can also look at the battery meter in the settings menu and see if you have a sudden drop in battery power or if it entirely cuts out. May give some clues to what's going on. Finally the only other thing I can think of is to uninstall any apps that save power or mess with the power settings on the phone.
Powstriker said:
The second problem deals with streaming videos on browsers. Before the ICS update, I was able to stream videos on any browser, but after that OTA update I cannot. I have tried multiple browsers, including Dolphin, Firefox (my main browser), and Opera. I heard it may have to do with flash not supporting android anymore (after 4.0.x, whereas I'm only running 4.0.3), but I have checked my phone and I have Flash 11.1 already installed. The settings on my browsers are to enable plug-ins on tap (means that I would tap a video to start it, right?).
Click to expand...
Click to collapse
Streaming video doesn't work for me, it will for a couple seconds and then die. So now I just open all links in the youtube app, which isn't perfect but it's good enough.
Powstriker said:
Lastly, as of now, I'm having a WiFi issue. It's not so much of an issue as a hindrance, though. Basically, I'm pretty much always in a WiFi zone, either being at home or on campus. When I get home from uni, WiFi automatically connects, no problem. When I'm at the uni, it will connect as soon as I get on campus, but when I walk from building to building, it loses connection and makes me reconnect. I go to hit reconnect, and it demands some credential password which I have never set. If I hit forget so that I can forget and reconnect to the network, it wants me to put in my screen unlock pattern. I draw the pattern to unlock it, but then it sort of refreshes and my pattern is gone and it doesn't let me continue with the process, so I have to go back to the home screen, back into settings, and clear credentials. Some posts said to continue to input incorrect passwords to allow a credential storage password reset, but that did not work. Some posts said to clear credentials, so I do that, but then I have to continuously type my login information whenever I move from class to class, which gets pretty irritating. The only way to connect to the WiFi is by disabling and reenabling the WiFi. Like I said, it's not a huge issue, rather a hindrance.
Click to expand...
Click to collapse
This has got to be either a config issue or a bug in how your phone handles your uni's wifi. Your uni will have multiple wifi APs with the same SSID (but on different channels) so that you can walk around and still remain connected. My guess is that there is a bug in the wifi drivers that don't like what your uni is doing, but it's really hard to say since that stuff is generally pretty complicated...
If you can't get your power issue fixed easily I would recommend you factory reset your phone. Don't install any apps for a couple days and see if your problems persist. If the power one does then take your phone in for warranty repair. The wifi one could be a bug, which would mean a warranty repair isn't going to do anything for that so you may be screwed on that one. Unless you want to hack your phone and load a new ROM; there is a slim chance that an updated ROM will not have the same bug.
gripen40k said:
Since you are stock, the only thing being that your phone is unlocked, I would say this is either a config issue or a HW issue. The simplest thing to do is to clean the battery contacts, as there is a small chance that something got on them and is causing the battery to drop out. You can also look at the battery meter in the settings menu and see if you have a sudden drop in battery power or if it entirely cuts out. May give some clues to what's going on. Finally the only other thing I can think of is to uninstall any apps that save power or mess with the power settings on the phone.
Streaming video doesn't work for me, it will for a couple seconds and then die. So now I just open all links in the youtube app, which isn't perfect but it's good enough.
This has got to be either a config issue or a bug in how your phone handles your uni's wifi. Your uni will have multiple wifi APs with the same SSID (but on different channels) so that you can walk around and still remain connected. My guess is that there is a bug in the wifi drivers that don't like what your uni is doing, but it's really hard to say since that stuff is generally pretty complicated...
If you can't get your power issue fixed easily I would recommend you factory reset your phone. Don't install any apps for a couple days and see if your problems persist. If the power one does then take your phone in for warranty repair. The wifi one could be a bug, which would mean a warranty repair isn't going to do anything for that so you may be screwed on that one. Unless you want to hack your phone and load a new ROM; there is a slim chance that an updated ROM will not have the same bug.
Click to expand...
Click to collapse
Thank you very much for the in depth reply. I'll take a look at the battery connections some time tomorrow as it's pretty late today. Do you have any recommendations as what to clean them with? I heard erasers are pretty good cause they have the "stickiness" to pick up grime, but wouldn't the rubber inhibit connectability?
The video thing isn't too big of an issue, but eh, a fix would be nice. If there's nothing that's known of atm, that is fine as well.
As for the WiFi, I didn't know if it was a bug or something I could fix internally. It's good to know, though, that it's not something I seem to have messed up myself haha.
Once again, I greatly appreciate the response!
Powstriker said:
Do you have any recommendations as what to clean them with? I heard erasers are pretty good cause they have the "stickiness" to pick up grime, but wouldn't the rubber inhibit connectability?
Click to expand...
Click to collapse
The contacts won't be corroded because they are gold, however it could be either they aren't springy (ie they got bent) or that something is stuck on them. Just take a look, make sure they look fine and that they are making a good connection. It's most likely not the issue but you just want to rule that out, as it would obviously cause problems if your battery was being disconnected
So, as an update, I managed to fix the battery issue by actually turning my phone around in my pocket (Strangely enough, I found that if I keep the screen away from the leg and the power button facing up, rather than the screen towards my leg, the phone does not turn off.). All that's left is to find a fix for the video and WiFi. The WiFi problem has actually started to become more significant, as WiFi is no longer automatically connecting to my home internet anymore. Sometimes at uni, as well, the phone requires a complete reboot before it will reconnect rather than a WiFi off -> WiFi on reset. Any more input would be greatly appreciated ^.^
I had same restart Issue
I don't know why or how it works.
Just put a piece of paper below the battery and the restart problem is solved
Flash a kernel and see maybe the modules are messed up
Sent from my HTC_Amaze_4G using XDA Premium 4 mobile app
Battery
I don't know why changing how the phone is situated in your pocket would solve the issue unless you were somehow unknowingly keeping the power button pressed down for long periods of time.
I will say I had the same issue and my suspicions lead me to the battery. Indeed, I bought a new battery and the issue has been resolved. There must have been some sort of short or default in the battery I was using that would cause my phone to randomly shut down or reboot..

[Q] Wifi not usable, ideas?

Hi,
This morning I randomly decided to update my firmware (as per Sony's incessant reminders). I updated to 17.1.1.A.0.402, as it was what Sony's updating app was telling me the latest firmware was. I updated as instructed on my tablet, wirelessly. The update was successful and totally uneventful -- no incidents whatsoever.
However, immediately after my update, my wifi dropped, and after that, I couldn't reconnect to *any* wifi network whatsoever. I toggled on/off, and the wifi would reconnect for a matter of seconds, maximum 2-3 minutes before dropping and never reconnecting again. To reconnect to wifi, I'd have to toggle off/on again and then would have seconds to try and load a page (but would never succeed)
So, I updated the firmware again, this time using the update application for the Mac since my tablet could no longer connect to wifi.
I successfully updated to 17.1.2.A.0.314.
Still the same wifi dropping and not coming back issues.
Then I tried "repairing" my software from the Mac, which I'm lead to believe erases everything and flashes with the most recent firmware.
Still had the same wifi issues.
Then I tried an erase/factory reset directly from the tablet.
I still have the same wifi issues, but they don't kick in within seconds anymore. Now after several minutes, the wifi will drop and not come back.
Any suggestions for a fix? I'm as of yet unrooted, and would like to remain that way if possible...
Thanks!
I would suggest a factory reset after flashing the update. Might solve your problem.
Before that you could try to delete your Wi-Fi and set it up again...
Vaetheran2107 said:
I would suggest a factory reset after flashing the update. Might solve your problem.
Before that you could try to delete your Wi-Fi and set it up again...
Click to expand...
Click to collapse
Thanks for your help
"Repairing" from this Mac app is flashing the update, correct? It erased and then flashed anyway. Had to set up the tablet like it was new. Is that not a factory reset?
In any case, I did a factory reset immediately afterwards, from the settings screen of the tablet, as mentioned above.
By "delete your wifi" do you mean "forget" the networks I'm trying to connect to? If so, I've done that many times, and have had to re set up my wifi networks anyway upon each factory reset/flash/erase.
So I think I tried what you suggested, and no dice, unless I've misunderstood?
Perhaps worth noting: I'm using the accompanying Sony Bluetooth keyboard.
Wifi seems to stick around a bit longer when Bluetooth is toggled off (no keyboard), though I could use the Sony keyboard before the update, no problem at all.
Yes that was what I ment.
Sorry it didn't help solving your problem.
Seems like you should call Sony.
It's the Bluetooth. Wifi and Bluetooth are on the same chip and won't work at the same time. It's a hardware fault with pretty much every Android system I've used. Turn off the Bluetooth and your wifi will be fine.
Thanks for your reply – though it was possible to use the bluetooth keyboard at the same time as wifi before the update.
Bluetooth keyboards would be pretty pointless if you couldn't use wifi at the same time as you use the keyboard, wouldn't they?
Between the Sony Xperia Z2 tablet, a Samsung Galaxy Tab S, and an iPad, I've used all with bluetooth keyboards + wifi without issues (until this firmware update on the Z2).
Use 5GHz Wifi, then the problem will be solved.
Sounds like you have been lucky so far and due to the small amount of data a bluetooth keyboard transmits. Bluetooth headphones are always transmitting as is wifi when watching hd youtube videos. They will always interfere with each other, but only every minute or so. Google the problem and you'll see its pretty universal.
heathr said:
Hi,
This morning I randomly decided to update my firmware (as per Sony's incessant reminders). I updated to 17.1.1.A.0.402, as it was what Sony's updating app was telling me the latest firmware was. I updated as instructed on my tablet, wirelessly. The update was successful and totally uneventful -- no incidents whatsoever.
However, immediately after my update, my wifi dropped, and after that, I couldn't reconnect to *any* wifi network whatsoever. I toggled on/off, and the wifi would reconnect for a matter of seconds, maximum 2-3 minutes before dropping and never reconnecting again. To reconnect to wifi, I'd have to toggle off/on again and then would have seconds to try and load a page (but would never succeed)
So, I updated the firmware again, this time using the update application for the Mac since my tablet could no longer connect to wifi.
I successfully updated to 17.1.2.A.0.314.
Still the same wifi dropping and not coming back issues.
Then I tried "repairing" my software from the Mac, which I'm lead to believe erases everything and flashes with the most recent firmware.
Still had the same wifi issues.
Then I tried an erase/factory reset directly from the tablet.
I still have the same wifi issues, but they don't kick in within seconds anymore. Now after several minutes, the wifi will drop and not come back.
Any suggestions for a fix? I'm as of yet unrooted, and would like to remain that way if possible...
Thanks!
Click to expand...
Click to collapse
I also have the problem but my tablet has 3 days of new it was working perfect the I update to 17.1.2.A.0.314 and the it kick me of the WiFi in the configuration it stays on obtaining IP address and never get it I have to restart the tablet and then the WiFi connect like nothing I turned off today I turn it on and the problem again appear >.< this time I restarted the modem and it worked.
So I don't have idea what happens first time restart the tablet work now restart the modem worked.
I will try changing to 5ghz to see if the problem it's solved or go to warranty it only has 3 days!!!
WiFi and bluetooth
Wing00w0 said:
I also have the problem but my tablet has 3 days of new it was working perfect the I update to 17.1.2.A.0.314 and the it kick me of the WiFi in the configuration it stays on obtaining IP address and never get it I have to restart the tablet and then the WiFi connect like nothing I turned off today I turn it on and the problem again appear >.< this time I restarted the modem and it worked.
So I don't have idea what happens first time restart the tablet work now restart the modem worked.
I will try changing to 5ghz to see if the problem it's solved or go to warranty it only has 3 days!!!
Click to expand...
Click to collapse
Hi, here's my experience with my Z2 tablet, unrooted. I too have had wifi problems: after using the tablet fine for a while, with a strong signal, the tablet drops out, then wifi access stalls whilst "Obtaining IP address". I sometimes use a Bluetooth Microsoft keyboard, but have had the wifi drop out when I have Bluetooth off.
The only reliable (so far) solution I have found is to move to a static IP address. Not ideal, and perhaps not much help when travelling, but an OK workaround for a home or other wifi network where you have admin access to the router.
Hope that helps. Apologies if my newbie post is naive.

Random Reboots and Frustrations T_T

So recently I have been having random reboots for my s6 edge (SM-G925W8) running G925W8VLU2AOG2 stock
I am not sure whats going on but when i'm at home the phone seems to be fine when connected to wifi, bluetooth etc.
As soon as I got to my university and im listening to music with Wifi turned on I believe the phone just randomly starts restarting and I cant stop seem to stop it until the phone runs out of battery, it'll keep on rebooting. I have a theory that maybe the wifi is somehow conflicting but again im not sure. The phone works fine at home....
There seems to be too many variables at play and I have no idea how to solve this
I desperately need my phone for school and personal stuff
Troubleshooting steps I have taken
- FULL factory reset with ODIN (wiped everything)
- Tried Safe mode didnt help.
I would just to bump and update you guys that I have confirmed its the wifi causing it. Everytime i connect to my school wifi , my phone just starts rebooting randomly and just keeps going. Now the question is how do i solve this =/

Wifi being stuck on or on/off troubleshooting

So I know this topic has a few posts many a year or so old but I'm looking for a possible work around for this issue. Here's a background of what happened:
I have a rooted note 4 originally running cm12, I wanted to return to a stock build and when I did something happened (can't remember what) and my wifi stopped working it would click on them immediately off my first thought was kernel so I flashed a new one but didn't help I tried a different stock build 5.0.1 instead of 5.1.1 but still same issue. I went back to the cm12 and that seemed to work fine still, I looked for another stock build because I'm stubborn and flashed a different kernel than the previous ones I've tried. This seemed to fix my wifi issue at least for a day then back to the same issues. Anyway here's what I've been messing with to try and figure this out.
I'm focused around the file wpa_supplicant.conf as I've tried restarts and all that but that won't do anything. What I have noticed recently is when I don't have any networks saved in that file I can toggle airplane mode and try toggling wifi, after a few sometimes dozen attempts it comes on and works fine so long as it stays on. If I turn it off I have to restart my process of going into wpa_supplicant.conf>deleting my saved network>toggling airplane>then spamming wifi. As I'm able to repeat this it leads me to believe it's not hardware related, slim chance on loose cable, But if there's a way to prevent the system from auto saving a password that might help with a workaround. I've tried changing that files permissions as well as the ones in the system>etc>wifi folder but they get changed back
Anyway I'm still working on finding the root cause but will update if I find anything also tried deleting the wpa file and that works to after a restart but issue comes back and so does file which doesn't seem to me that its a corruption issue
Update:
So I somehow crashed my Samsung messenger app switch to hangouts and then back so decided to wipe my phone and refresh the OS. I factory reset then advanced wiped cache, dalvik, system and data. When it rebooted I tested the WiFi in the system setup and it worked fine I could turn it on and then off normally so I decided to continue setup once fully setup and no other apps installed I retested the WiFi. It worked fine I connected to an access point and it stayed connected I then forgot the network cycled wifi and tried again and again still worked so I let it sit and would test it throughout the day. About an hour or so later the problem reappeared which was odd. I did my old workaround deleting wpa_supplicant.conf and toggling wifi until it turns on. I got it to turn on and connect to my home WiFi and left it, so far I've kept my wifi on and it's stayed active for 24hours now and reconnects fine to my home router when I'm in range and back to lte when I'm away so right now it seems I can have wifi if I don't toggle it off. Still not sure what's causing this issue as since I'm currently using wifi to write this I don't see it as a hardware issue. After trying multiple kernels I don't see that as the cause either, although possible. Will keep messing around and update if I find anything further
Update 2: so far I've been able to keep my wifi working great as long as I keep it on and don't toggle it off. Doing this has kept it active and auto connecting to my home wifi for a week straight. I make sure to keep wifi I during sleep so it won't disconnect but it also seems to stay active through restarts which is great. This still leads me to believe it's software related and not hardware but not sure where the issue is.
Update 3:
So far I've just kept my wifi on while trying to find the issue. The only other issue I've come across was since my wifi is on 24/7 and auto connects if I want to use my lte instead i have to either turn off wifi or forget my home network which neither is an option. But I have found a solution:
I was able to add a shortcut to my home screen that actually disables the current wifi connection without disabling wifi and forgetting the password. To do this you must have Tasker just create a new task in second tab, I named mine disconnect wifi, click the plus sign and select "net", next select "wifi net" there is an option that says disconnect. Have that selected then go back and thats it,add in icon on bottom right to use as a shortcut. I've tested this and it works great one tap and it disconnects the wifi but keeps wifi turned on and if I want to re connect just go into WiFi settings and choose the one to connect to

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