CM7 switches from wifi to 3G/4G when screen is off? - Thunderbolt Q&A, Help & Troubleshooting

I finally rooted my TB and flashed CM7.1 and Imoseyon's kernel. In general, everything is working great except for my battery life. I am going to give it a few days to shake out, but one thing that I am noticing is that my phone appears to switch from a stable wifi connection to a 3G or 4G connection when the screen goes off. Upon waking up the phone, it immediately switches back to wifi, but this seems like it would contribute to poor battery life given the higher power requirements of the 3G/4G radio compared to the wifi radio.
Has anyone seen this? Am I overlooking something simple?

Go to Wifi settings, hit menu button, hit advanced and change wifi sleep policy to never.
Sent from my HTC ThunderBolt using Tapatalk

bpyazel said:
Go to Wifi settings, hit menu button, hit advanced and change wifi sleep policy to never.
Sent from my HTC ThunderBolt using Tapatalk
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Thanks! I forgot about that setting which must have been reset when I flashed CM7.1.

Related

Anyone else notice this cool wifi setting?

A friend of mine, who also has the 3d, noticed that there was a setting in the wifi settings that enables you to set your phone to connect to the strongest wifi signal. Just go to wireless and connections, go to wifi settings, press the menu button, go to advanced, and select best wifi performance. I never noticed this and thought it was awesome since we have a ton of wifi networks at work that are better in certain spots.
Sent from my PG86100 using XDA App
lyon21 said:
A friend of mine, who also has the 3d, noticed that there was a setting in the wifi settings that enables you to set your phone to connect to the strongest wifi signal. Just go to wireless and connections, go to wifi settings, press the menu button, go to advanced, and select best wifi performance. I never noticed this and thought it was awesome since we have a ton of wifi networks at work that are better in certain spots.
Sent from my PG86100 using XDA App
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I had been wondering if there was a description somewhere that tells exactly what that setting does. I always thought it ran the WiFi radio at a higher current in order to keep a better signal. Are you sure it has anything to do with always picking the strongest signal?
Mike
lyon21 said:
A friend of mine, who also has the 3d, noticed that there was a setting in the wifi settings that enables you to set your phone to connect to the strongest wifi signal. Just go to wireless and connections, go to wifi settings, press the menu button, go to advanced, and select best wifi performance. I never noticed this and thought it was awesome since we have a ton of wifi networks at work that are better in certain spots.
Sent from my PG86100 using XDA App
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Interesting find, will need to watch this.
Sent from my PG86100 using XDA App
ITT: OP hates good battery life
daneurysm said:
ITT: OP hates good battery life
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I take my charger to work and underclock most of the time, so it's not a huge deal.
Sent from my PG86100 using XDA App
also when my screen is off it disconnects it self from wifi!! has anyone notice that?? it's cool since it is saving battery
You can change wifi sleep settings in that same menu also. I run the performance mode and still get great battery life also
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Nice because I have two wireless routers one in the front house and one in the back. Sometimes it stays connected to the weaker one when I'm further away from it. Thanks for the tip.
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Wow never noticed that, thanks! Definitely gonna use this now.
EDIT: Guess its an Evo 3D thing only thought I might have it still...
Sent from my SPH-M910 using XDA App
lyon21 said:
A friend of mine, who also has the 3d, noticed that there was a setting in the wifi settings that enables you to set your phone to connect to the strongest wifi signal. Just go to wireless and connections, go to wifi settings, press the menu button, go to advanced, and select best wifi performance. I never noticed this and thought it was awesome since we have a ton of wifi networks at work that are better in certain spots.
Sent from my PG86100 using XDA App
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nice find bro,gonna give it a try...
danaff37 said:
You can change wifi sleep settings in that same menu also. I run the performance mode and still get great battery life also
Sent from my PG86100 using XDA App
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i use an app called green power,its free,it turns off all radios(wi-fi,3g,4g in the paid app)when ur creen turns off and automatically turns them on instantly when u unlock ur screen,does wonders for my batt.life.
It's better to keep wifi connected when the screen is off as it uses less energy than the 3g radio
THEGAMEPLAY94 said:
It's better to keep wifi connected when the screen is off as it uses less energy than the 3g radio
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That's what I heard as well.
sent from my EVO3d
I'd still like to know your source for the info saying that this setting evaluates the signal from all wifi sources and picks the one with the best signal. This setting is not outlined anywhere other than to mention that it uses more battery. Is it just something you turned on and you noticed it did that... or did you read it somewhere?
Mike
THEGAMEPLAY94 said:
It's better to keep wifi connected when the screen is off as it uses less energy than the 3g radio
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I do the same thing unless I'm somewhere that has no wifi. I also disable the always on mobile data which saves battery life without losing functions of your phone.
Sent from my Transformer TF101 using XDA Premium App
housry23 said:
I do the same thing unless I'm somewhere that has no wifi. I also disable the always on mobile data which saves battery life without losing functions of your phone.
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Disabling "always on mobile data" will prevent you from getting push email from apps like K9 mail. Won't it? I mean, if I'm waiting for an email and I want to hear a chime when it comes in (I have K9 set up that way), it'll never come through if there's no wifi and I uncheck "always on mobile data". Correct?
Mike
Push email still works. Or At least gmail does..
Sent from my HTC Evo 3D.
mikeyxda said:
I'd still like to know your source for the info saying that this setting evaluates the signal from all wifi sources and picks the one with the best signal. This setting is not outlined anywhere other than to mention that it uses more battery. Is it just something you turned on and you noticed it did that... or did you read it somewhere?
Mike
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If you have a spot where this would help, check it out. Mine does it at work. We have a customer wifi and a service wifi that get better strengths in certain spots and it will switch back and forth.
Sent from my PG86100 using XDA App
Someone should do a couple runs of Speedtest with this on and off to see if there is a real difference in throughput.
Also, turning off "always on data" does not stop Gmail from syncing, and it does wonders for battery life in my experience.
mikeyxda said:
Disabling "always on mobile data" will prevent you from getting push email from apps like K9 mail. Won't it? I mean, if I'm waiting for an email and I want to hear a chime when it comes in (I have K9 set up that way), it'll never come through if there's no wifi and I uncheck "always on mobile data". Correct?
Mike
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Correct. Whenever you turn your phone screen on though, data will reconnect and stay connected for a couple of minutes, any e-mails that were waiting to be pushed to your device will then get sent. You won't get any notifications if you never check your phone all day, but I'm usually getting a text every once in a while which I turn the phone on to reply to.
You'll get immense battery savings with always on mobile data turned off as well.

Auto everything

Before I posted this question I could not find any answers
Anyway my question is. is there a way to make everything auto like when you are not using internet automatically turn off 3g or 4g and when u use it automatically turns on 3g or 4g and my talk and text insted of going in to setting and menually turn on
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ampinc said:
Before I posted this question I could not find any answers
Anyway my question is. is there a way to make everything auto like when you are not using internet automatically turn off 3g or 4g and when u use it automatically turns on 3g or 4g and my talk and text insted of going in to setting and menually turn on
Sent from my ThunderBolt using Tapatalk
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Easily accomplished with an app in the Market called Tasker. It's over $6 but worth it to me. There's also Locale, SettingProfiles, etc but Tasker seems more feature-rich and more actively dev'ed.
When I was not rooted I was getting great battery life using Juice Defender, spend the little bit of money to get the Pro version. It will come on at a time you select to search for gmail or MMS as soon as 15m or every hour, it also has a night sch where it never lets the internet connect. You can also block apps from reaching the internet which I did often on App that wanted full internet access (yea right), it will also turn off WiFi after screen off if you select that as well. It has a ton of options and like I said was getting great battery life while lettting it manage my phone. It will also reconnect to the internet as soon as you screen on. So there you go Auto everything.
ampinc said:
Before I posted this question I could not find any answers
Anyway my question is. is there a way to make everything auto like when you are not using internet automatically turn off 3g or 4g and when u use it automatically turns on 3g or 4g and my talk and text insted of going in to setting and menually turn on
Sent from my ThunderBolt using Tapatalk
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Grnlantern79 said:
...it will also turn off WiFi after screen off if you select that as well. .
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Your phone can do that by default if you go to wireless settings → press menu button → advanced settings → disable wifi on sleep.
yareally said:
Your phone can do that by default if you go to wireless settings → press menu button → advanced settings → disable wifi on sleep.
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If your connected to WiFi it will use less power than 3g or 4g, its when your not connected and its searching for a connection that it eats up battery. I toggle WiFi on as soon as I'm home or around WiFi and off as soon as I leave.
Thanks guys fir the info I will try that
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Wifi keeps turning on?

I have noticed that this is not specifically an Evo 3D issue, happened on my OG Evo as well...
No matter what I do, I notice that my wifi turns on every so often... I will turn it off, then go back later on to see that my wifi is back on. I don't know what to do.
While this may not seem to be a big issue, it is a annoyance that I would like resolved. It is more of a "control" thing : I tell it to stay off, it had better stay off.
Thanks!
Sent from my PG86100 using Tapatalk
This is the same for me- very weird
What ROM are you using? Rooted running something special, newest OTA, what? Did you check the options to make sure you disable WiFi from scaning or trying to join open networks?
I am using Steel 2.01. In regards to the settings, I can't seem to find an option to disable scanning of networks and to disable automatically connect to open networks.
Sent from my PG86100 using Tapatalk

[Q] WiFi intermittent

Since unlocking and rooting my Rez, my wifi works intermittently. I have the stock ROM and Sense 3.5.
At least once every day, none of the programs using a wifi connection will work--weather, internet, etc. The status bar shows a strong wifi signal but nothing will connect. The only way to get it working again is to toggle the wifi off and then back on again. Then it works again for awhile.
Any thoughts about how to resolve this situation?
check router settings,restart router,check phone wifi settings in case you want to fine tune the sleep options. if problem still occurs then backup your data,wipe everything except external,reflash and you should be good
if I helped then hit the "thanks" option
sent from my ice cream covered vigorous vigor
dyetheskin said:
check router settings,restart router,check phone wifi settings in case you want to fine tune the sleep options. if problem still occurs then backup your data,wipe everything except external,reflash and you should be good
if I helped then hit the "thanks" option
sent from my ice cream covered vigorous vigor
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Thanks, I'll give that a shot.
dyetheskin said:
check router settings,restart router,check phone wifi settings in case you want to fine tune the sleep options. if problem still occurs then backup your data,wipe everything except external,reflash and you should be good
if I helped then hit the "thanks" option
sent from my ice cream covered vigorous vigor
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Tried your recommendations but it is still doing the same thing.
Any other suggestions?
well if did a clean install after a wipe then either your wifi is borked or you didn't reset your router by unplugging it for a minute. might be your router depending on age and wear/tear
if I helped then hit the "thanks" option
sent from my ice cream covered vigorous vigor
I did power off the wi-fi and it does work on the wi-fi. It just goes off for some reason. Again, if I toggle off the wi-fi and then toggle back on, it might work for several hours before it doesn't work again. Also, it shows full signal strength in the status bar. Then, toggle off and back on and I'm good to go again for several hours.
I'm having this exact same issue so it doesn't seem to be isolated to just your phone. However, to get my wifi working again I actually need to reboot the phone as turning the wifi off and on again doesn't resolve the connectivity problem for me. I'm curious as to what would cause this, my roommate also has the Rezound using the current ICS leak, non-rooted (I'm non-rooted as well) and he doesn't seem to have any issues with his wifi connection.
FYI for me it isn't isolated to just one wifi network, happens to me on any wifi network I try so it seems to be directly related to the phone and not a router config problem.
What type of security settings are you using on your router? I used to have the same problems that you are having until I changed it to WEP.
brock350 said:
What type of security settings are you using on your router? I used to have the same problems that you are having until I changed it to WEP.
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Yuk... that really can't be the issue... if it is, you need to replace your router.
Stock Rom and everything I connect to is WPA2 without issues.
Occasionally the phone drops WiFi (like it gets turned off), but then it is using 3G/4G. Not sure why it does that, but it does. Doesn't prevent data access unless you have to 3G/4G access at the time. It doesn't do what the OP is reporting though.

Wifi shuts off when phone goes to sleep

Is anyone else having this issue? Every time I wake the phone from sleep I see the wifi with no bars, then a second later it is full again. I found a thread where One X users were reporting the same issue. I have it set to always on and even have checked the increase wifi performance check box as well.
Also, sometimes using the bookmark widget the phone won't load a webpage despite showing a strong wifi connection, I have to turn wifi on and off to correct this
Must be an ICS thing because my Touchpad does the same thing.
On a side note, my iPhone does the same thing too.
in your wifi settings hit menu and click advanced. there is a setting to set the wifi not to turn off during sleep.
Warrior 3000 said:
in your wifi settings hit menu and click advanced. there is a setting to set the wifi not to turn off during sleep.
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I said in my original post I had that set already to always... the mneu says "Keep wifi on during sleep" I have it set to always
Seems to be a known issue if the phone goes to sleep for an extended period of time wifi will disconnect regardless of the wifi setings. We will have to wait for htc or rom dev's to fix the issue.
If you get the Power Saver Settings app (free) from the market, you can access hidden power options in ICS. Two of which are "Manage my connection when screen is off" (which may or may not apply only to network data) and "Turn off Wi-Fi if not connected." Perhaps try those settings.
My WIFI was shutting off and it is sometimes a bit bumpy reactivating it every time I wake it.
So I tried setting that setting to Keep WIFI on always while asleep.
WIFI is MUCH more stable now when waking the phone.
However, it seems to be using up battery much more quickly too.
Mathman85 said:
If you get the Power Saver Settings app (free) from the market, you can access hidden power options in ICS. Two of which are "Manage my connection when screen is off" (which may or may not apply only to network data) and "Turn off Wi-Fi if not connected." Perhaps try those settings.
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i'm having the same wifi issue with my evo lte. I even changed these settings you mentioned and the same thing has been happening for a couple days. guess we'll have to wait on htc or devs for a fix.
i changed the ghz or whatever on my fone and it seems to not die out anymore after an hour of sleep
i have the same problem which prevents me from getting email and some other notifications on time. hope htc can fix this.
Same thing happened on ICS leak for 3D. Mikey finally fixed the issue in MeanRom.
riyatch said:
i have the same problem which prevents me from getting email and some other notifications on time. hope htc can fix this.
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i was going to create a new thread... but found a 9 month old thread I previously started... I'm having the same wifi issues still.... since the recent update it has gotten worse. Often times at home I'llw ake the phone from sleep only to see the wifi is not connected.... so I am missing notifications/emails while it is sleeping.
I don't notice this problem occurring at work, so I'm guessing it may just be an issue this phone has with my router (Linksys WRT54GL)... but I'm not even sure what router settings I should change.
iamkoza said:
i was going to create a new thread... but found a 9 month old thread I previously started... I'm having the same wifi issues still.... since the recent update it has gotten worse. Often times at home I'llw ake the phone from sleep only to see the wifi is not connected.... so I am missing notifications/emails while it is sleeping.
I don't notice this problem occurring at work, so I'm guessing it may just be an issue this phone has with my router (Linksys WRT54GL)... but I'm not even sure what router settings I should change.
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I noticed before the update that mine would do this after midnight, then after the update I stayed connected. However it's back to disconnecting after midnight again. I cannot figure out why.
Sent from my EVO LTE using Tapatalk 2
Sounds like 1) ur power saver is on or 2) smart sync - occurs midnight to 6? I forget but it happens during night time.
Sent from my EVO using xda app-developers app
Majin101 said:
Sounds like 1) ur power saver is on or 2) smart sync - occurs midnight to 6? I forget but it happens during night time.
Sent from my EVO using xda app-developers app
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my power saver is off.. the application monitor is on... but I cant see that impacting wifi connectivity?
iamkoza said:
my power saver is off.. the application monitor is on... but I cant see that impacting wifi connectivity?
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Disable smart snyc via custom rom or freeze or remove the app. Here's a quick read
http://www.androidpolice.com/tags/fix-smartsync/
If you do a google search you'll find much more on the software/app
#Root-Hack_Mod*Always=LTE
Majin101 said:
Sounds like 1) ur power saver is on or 2) smart sync - occurs midnight to 6? I forget but it happens during night time.
Sent from my EVO using xda app-developers app
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Powersaver is always off. Smart sync is turned off in my mail settings -is that the only smart sync to turn off?
Sent from my EVO using Tapatalk 2
Sprint connections optimizer is your culprit... Make sure that is turned off I don't remember where exactly it's at...
Sent from my EVO using Tapatalk 2
gunfromsako said:
Sprint connections optimizer is your culprit... Make sure that is turned off I don't remember where exactly it's at...
Sent from my EVO using Tapatalk 2
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That has been off too. Made sure that it still is.
Sent from my EVO LTE using Tapatalk 2
---------- Post added at 03:25 AM ---------- Previous post was at 03:22 AM ----------
The app listed above, smart sync disabler, is no longer available.
Sent from my EVO LTE using Tapatalk 2
Cyrene said:
That has been off too. Made sure that it still is.
Sent from my EVO LTE using Tapatalk 2
---------- Post added at 03:25 AM ---------- Previous post was at 03:22 AM ----------
The app listed above, smart sync disabler, is no longer available.
Sent from my EVO LTE using Tapatalk 2
Click to expand...
Click to collapse
If you want the app pm me.
#Root-Hack_Mod*Always=LTE

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