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Frustrating Wifi problems

It seems like wifi on my phone just won't cooperate with me.
The problem's never the same but the general concept is the same. Either my wifi doesn't turn on, or it'll turn itself off after some time. Sometimes I turn on wifi in comm manager and I'll get the loading thing, but then it doesn't turn on.
Other times, it'll turn on only to be instantly turned off again.
Other times it'll turn on. I'll start surfing the web (or doing nothing for that matter) and it'll be turned off again!
Sometimes it'll turn on, work fine, and then I'd lock my phone and turn off the screen for a while. Afterwards, I turn on my phone again and it's turned off again. It was on before I turned off the screen (and it should stay on.. it did when I first got my phone).
I recently hard reset and flashed to Energy Rom, Mercury. The problem persists. I guess this means it's a hardware issue right? I've checked many settings (including all of the settings in advanced config) and it seems like wifi isn't acting as it should..
Anyone have any ideas?

hard reset, flash new radio/rom

paperWastage said:
hard reset, flash new radio/rom
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Click to collapse
thats not going to work he said that he just flashed the newest mercury rom and that means he has probably got a good radio too . unless its just the radio .
other than that i don't know what to tell you about wifi other than i don';t use it much .

the rom works fine and the radio doesn't affect wi-fi. there are some settings that disable wi-fi after a period of no use. it could be that. only reason that would occur while you're actually using it tho would be that it was using your data connection and not wi-fi the whole time so wi-fi stayed inactive and decided to shut off. check your wi-fi settings.

I made sure that I disabled data connections (since I don't have a data plan. I cannot connect to the internet if I do not have wifi on).
I'm pretty convinced this is a hardware issue.. Looking at my wifi settings, there's no reason why it should turn off, and the only thing I noticed was that in advanced config, it's set to disconnect wifi after 2 mins of inactivity. I often get disconnected from wifi like 4 seconds after turning it on (and often while I'm trying to load a page in opera too).

Wifi unable to connect from Transformer's Sleep Mode

Guys, I have a problem with the Transformer and it's Wifi that is driving me mad!
Regardless if I have wifi running in the background or put in Plane Mode when I turn on the screen after a short interval I notice the wifi has dropped and there is no longer an internet connection.
Not only that I can not get it to start again unless I switch off the TF and reboot.
On investigation on the settings, when I click on Wireless & Networks I notice the right hand pane of Wifi & Wifi settings to be flashing as if it is trying to connect but gets locked out over and over. As such you can not access any of the wireless settings.
I would appreciate any assistance you can shed on this problem.
Many thanks in advance.
Beards
EDITED:
I believe I have now found what was causing the problem and have explained in detail in Post 10 below.
Basically I found it was after updating to v3.2.1 ~ the WiFi Settings/WiFi Disconnection Policy 'When screen is tuned off' & 'Never when plugged in' was interfering with the state of WiFi, causing it to poll and repeatedly try and switch itself back on, thus a constant flash and inability to activate WiFi..

Ddvvvvvvvvv

Fire n mage said:
Ddvvvvvvvvv
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Click to collapse
Sorry... what does that mean?

Searched the internet, and discovered two things, I did both.
1) Removed the maps update.
2) Changed the the channel on my router to 6
Works fine now.

I'm having this same problem for the past few weeks. Whenever the WIFI goes to sleep, I cannot turn it on unless I reboot my Transformer. It's sort of annoying.

It's got to be software orientated that is interfering with the TF.
I can not think of anything other than software causing it to continually 'flash' as it tries over and over again to connect.
I need to look into date captured software updates to see if I can narrow down the culprit.
Looks like I have a long job ahead of me..... sigh!

I got the same issue, after maps update, but apparently It's got to do with use wifi for determining your location, if i switch this off , tablet connects fine after returning from sleep.
regards
kef

kefje27 said:
I got the same issue, after maps update, but apparently It's got to do with use wifi for determining your location, if i switch this off , tablet connects fine after returning from sleep.
regards
kef
Click to expand...
Click to collapse
Mine has nothing to do with Maps and it's doing this continuous polling even when woken from Plane Mode and then trying to switch wifi back on.
I have a theory and am looking at it.... Will report back later.

Any news yet?
Sent from my Transformer TF101 using Tapatalk

LordNickerchen said:
Any news yet?
Sent from my Transformer TF101 using Tapatalk
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Click to collapse
Yes, I've worked out what the problem for me was and was just coming back to report when I read your post....
Basically for me it is to do with Settings/Wireless & Networks/Wifi Settings/Wifi Disconnection Policy.
After I updated to 3.2.1 I changed the policy from 'Never (uses more battery power)' to 'When screen is tuned off'.
Thinking about it the problem has only been since I changed the policy.
So, I changed it back to 'Never' and the wifi remained on and the problem I was getting disappeared.
I then changed it back to 'When screen is tuned off' and the problem came back.
I then altered it to 'Never when plugged in' with the TF not plugged in and the problem was still there.
Plugging the TF in and the problem disappeared.
Only by changing it back to 'Never' when not plugged in does my wifi remain on ~ which if you think about it is exactly what it is meant to do.
Therefore, for me it would appear changing the policy to turn off the wifi is causing this issue of when you wake the phone up from sleep you can not reactivate the wifi and when looking at the wireless settings the whole of the right hand page of wireless settings are continuously flashing thus not allowing you to access and alter them.
At that point the only way you can reactivate wifi is by doing a power down and reboot.
So guys...... Has anyone else noticed the wifi disconnection policy effecting your wifi from sleep?

Mine stopped reconnecting again last night, the tablet would continuously reboot.
The only solution was to reboot the router.
I will try the keep on and I have turnoff wifi location.
Lets see

FSB said:
Mine stopped reconnecting again last night, the tablet would continuously reboot.
The only solution was to reboot the router.
I will try the keep on and I have turnoff wifi location.
Lets see
Click to expand...
Click to collapse
How did you get on with changing the wifi disconnection policy?

Changing the disconnection policy never worked, note sure if this is the best solution, as I recon it will drain the battery.

FSB said:
Changing the disconnection policy never worked, note sure if this is the best solution, as I recon it will drain the battery.
Click to expand...
Click to collapse
Interesting.... as it is the only way I can get a stable WiFi that will turn back on from Screen Off.
Even though it says the battery may use more power it doesn't seem all that much different if anything at all... Prior to the latest update I had the policy set to 'When screen is tuned off'.
After the update it defaulted back to 'Never (uses more battery power)' and again after changing it back to 'When screen is tuned off' this is when my problem started.
I am thinking this is something to do with my TF as no one else has reported a problem with WiFi and the 'When screen is tuned off' policy.

I just re-read my post.
It should read
Changing the disconnection policy to "never". Worked.
Note sure if this is the best solution, as I recon it will drain the battery.
Sorry.
What you describe is exactly what happened to mine.

FSB said:
I just re-read my post.
It should read
Changing the disconnection policy to "never". Worked.
Note sure if this is the best solution, as I recon it will drain the battery.
Sorry.
What you describe is exactly what happened to mine.
Click to expand...
Click to collapse
Thanks.... This now makes a lot of sense in that it points to a possible bug with the WiFi policies.

This is driving me crazy. I have tried everythinig mentioned, but my TF still goes through the wifi connection loop. Gotta be software related...

tn8shooter said:
This is driving me crazy. I have tried everythinig mentioned, but my TF still goes through the wifi connection loop. Gotta be software related...
Click to expand...
Click to collapse
Did you try changing the Wifi disconnection policy to 'Never (uses more battery power)'?
That sorted it out for me.
It's since Honeycomb 3.2.1 came in I now find I can not use any other disconnection policy.

This happens to me if I select anything other than "Never (uses more battery power)"
I have found though that if I uninstall the google maps update, and deselect Wifi Localization, that I can have the TF set to "Never when plugged in" or "When screen is turned off".
( see: google.com/support/forum/p/Google+Mobile/thread?tid=4778cb9a3f187b75&hl=en ) (sorry for broken link - I am new and cannot post these)
So it seems like either a problem with Google maps (that may be specific to the TF), or a problem with the TF firmware?

wifi fallback issue on SGH-i727????

Hi,
Just wonder if anybody is experiencing the same wifi fallback issue on the SGH-i727?
Basically, the phone doesn't automatically fall back to the previously added wifi network from LTE/4G when the screen is off. To get around that, I'll need to hit the power button once every time I enter the wifi range. When the screen is turned on by hitting the power button, I will see the 4G/LTE being replaced by the wifi icon very quickly. After that, it will then stay connected to the wifi network regardless whether the screen is on or off.
I was able to confirm this issue by monitoring the app traffic before and after I turned on the screen.
Without turning on the screen in the wifi range, the phone will stay on the 4g/LTE network forever even though the previously added wifi network is available.
I have already tried out different routers and it's still the same. SSID broadcast is on. I am thinking if there's a bug with the phone. Note that on my phone, my "Wi-Fi sleep policy" under the advanced menu of the "Wi-Fi settings" is always set to "never". Also, it's a stock ROM, nothing is modified at all.
This issue has never happened on other phones. What you think? Am I missing anything here?

After playing with it more, I noticed that the phone will never do the wifi handshake when the screen is off.
I tried turning off and on the wifi in the Wi-Fi settings. If I turn off the screen quickly before the phone gets connected to the wifi network again, it *will* remain unconnected until the screen is turned on again. =(

Did you go into the advanced wifi settings and change the wifi sleep policy?
Sent from my SAMSUNG-SGH-I727 using XDA App

No, I didn't. I've never touched that setting. The "Wi-Fi sleep policy" is always set to "never".
My phone can still be connected to wifi when the screen is off, so it doesn't seem related to the "Wi-Fi sleep policy". The problem is only that it won't do any wifi connection handshake during screen-off.
Am I the only one having this issue? I guess that's more of a software issue rather than a hardware issue?

Have you tried the AT&T wifi app? It automatically turns off and on wifi as needed

No, that doesn't help.

Yes, I do realize I'm bringing back a thread from the dead, but...
I just got a Samsung Stratosphere (SCH-i405 -- a CDMA-1X/EVDO/LTE Galaxy S phone) and it does EXACTLY the same thing. It's ironic, on the Stratosphere they added a bit of fun that CONSTANTLY lets you know there's networks (which I had to disable), but it doesn't connect to the wifi networks I do have in there until I turn on the screen I guess that's just how it is; at least it doesn't kill the wifi once it IS connected.
If anyone knows a programmatic way to bypass this, I'd be interested, and I could write up a wifi app to implement the solution. I'm guesisng it's a behavior of the drivers though and would take some custom ROM or something to fix.

You could always try to use tasker for automatically connecting to the wifi using radio antenna or maybe can't remember if possible by identifying certain wifi spot.

My WiFi Problem

I tried to resolve this problem for quite a while without success . I connect to a WiFi without problems by pressing radio button or through settings. Also I can disconnect without problems. But there is this thing: I am connected at my home lets say on WiFi and I go without turning off my WIFI to another place lets say work, and my phone won't connect to that WIFI automatically (radio button for WiFi is turned on). So I need to turn the button off and turn it on again and then it will connect, or I just go to settings for WiFi and it will start scanning and connect to WiFi immediately.
More about this behavior: if I am connected to WiFi and go out of range and then in a range of another spot lets say in 10-20 minutes my phone will connect automatically. If its longer period maybe 20 minutes or more it wont connect automatically when I get into range. Also I dont think that has something to do with phone getting to deep sleep, because this morning I was walking to my home and listening music all the time and when I got home my phone didnt connect automatically. Nothing. It just seems it stops scanning, also when this happens I am not notified about open networks when I get in range.
My WiFi setting is always set on always connected and this happens even when I flash new stock ROM. While ago when I flashed version 2.3.4 this wasnt a problem, now even when I flash that one I have this same problem. I also tried few different stock ROMS without success.
I know this is not a big deal but it is irritating and I would like to fix this, so please help

Check your wifi sleep policy.
Press menu in wifi settings and set it to 'never'

Check your wifi sleep policy.
Press menu in wifi settings and set it to 'never'
Click to expand...
Click to collapse
Wifi sleep policy is set that way already

WiFi cycling off and back on every so often, and sometimes disabling itself

Sometimes my WiFi goes away, LTE kicks in for a second, and then WiFi comes right back. I don't know for certain, but it may only happen when the phone has been unused for a while, right after I first pick it up to do something. But I have the WiFi power saving option turned off, so that WiFi should stay on all the time. And I seem to recall it happening just at random sometimes, too, in the middle of browsing websites or social media apps. It'll say "no connection" and I'll look up and see LTE kick in, then WiFi come right back, then I'm all good. It's very annoying.
On top of the quick WiFi cycling issue, sometimes WiFi will just completely stop working. When I go into settings, it says it's disabled and I can't turn it back on. Going in and out of airplane mode fixes it. This only happens about once a week or so. The other issue is by far more annoying.
Anyone else experiencing either of these? I'm on Verizon with a black 128 GB stock, unrooted, if it makes a difference.
Thanks!

I personally haven't seen this on my VZW Pixel although I use it with T-Mobile service. These are as suggestions only, and it may or may not help, but you could try using any order below.
1) The setting to keep WiFi during sleep is on, right?
2) Have you tried to use your phone without sim card in it and see if WiFi is still acting strange?
3) I would also suggest to go to Settings>Google>Networking and see if you have WiFi assistant on or off. There is a setting under advanced as well.
4) Does it happen on all WiFi networks or when using on particular one? You could forget that network and then join again.
5) Alternatively you could "Network settings reset" under Settings>More>Network Settings Reset - after the reset, you may need to rejoin all the networks, pair Bluetooth devices and so on.