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[Q] Wifi stockrom ICS

Since a few days I'm running the ICS stockrom on an unrooted Note. Before on the GB I was have not the best reception with Wifi, but it was working. Now, with ICS, my Wifi is connecting/disconnecting/connecting/and so on within a matter of seconds. I'm experiencing this on multiple Wifi networks. Therefore I would say it does not concern the settings of my Wifi network, also I'm practically sitting on the router (channel, reception can't be issue).
I've installed ICS via Kies and have done an additional factory reset today.
Does anybody know what could be the cause of this? And, more important, how to solve it?

1979Sentinel said:
Since a few days I'm running the ICS stockrom on an unrooted Note. Before on the GB I was have not the best reception with Wifi, but it was working. Now, with ICS, my Wifi is connecting/disconnecting/connecting/and so on within a matter of seconds. I'm experiencing this on multiple Wifi networks. Therefore I would say it does not concern the settings of my Wifi network, also I'm practically sitting on the router (channel, reception can't be issue).
I've installed ICS via Kies and have done an additional factory reset today.
Does anybody know what could be the cause of this? And, more important, how to solve it?
Click to expand...
Click to collapse
Others have had similar issues - try reflashing the same modem from here:
http://forum.xda-developers.com/showthread.php?t=1645202
I found that wi-fi and data both worked better after flashing the modem a second time.

Thank you very much it seems to be working!!
I had to look to find out how to get the phone in download mode, but got it.
Sad to say I did an unneeded factory reset this morning, but yeah it is working now!

I've been also noticing momentary WiFi disconnections ever since I upgraded to ICS.
I'm using MyPhoneExplorer to transfer files wirelessly to the device (not via USB), and ever since ICS it has became an unreliable way to transfer files. If I transfer a big file most chances are that the WiFi connection will drop during the transfer, causing it to fail.
The connection is restored immediately but then I have to restart the transfer process as it halts when the connection fails.
I have excellent signal level (physically located close to the Access Point), I tried flashing the latest modem firmware (XXLR1) - twice, I've set "2.4GHz only" in the WiFi advanced settings, all to no avail: I still get these connection drops.
The same setup (phone, access point, etc) has all been working well in the past with GB. Now with stock ICS it performs poorly.
Has anybody got any information about this problem? Been experiencing similar problems?
Thanks!

I've been getting this issue too but it seems to only be with our virgin router, all other devices connected to it are fine although the signal is a bit crap on them to its at least stable
I tried the modem flash etc but no improvement, I'm pretty sure its the ****e virgin router
Sent from my GT-N7000 using xda premium

sagie said:
I've been also noticing momentary WiFi disconnections ever since I upgraded to ICS.
I'm using MyPhoneExplorer to transfer files wirelessly to the device (not via USB), and ever since ICS it has became an unreliable way to transfer files. If I transfer a big file most chances are that the WiFi connection will drop during the transfer, causing it to fail.
The connection is restored immediately but then I have to restart the transfer process as it halts when the connection fails.
I have excellent signal level (physically located close to the Access Point), I tried flashing the latest modem firmware (XXLR1) - twice, I've set "2.4GHz only" in the WiFi advanced settings, all to no avail: I still get these connection drops.
The same setup (phone, access point, etc) has all been working well in the past with GB. Now with stock ICS it performs poorly.
Has anybody got any information about this problem? Been experiencing similar problems?
Thanks!
Click to expand...
Click to collapse
At my side it seems to be working better now, steps I've taken (in this order):
1. Flashing new modem
2. Enter fixed IP address for my home Wifi
3. At Settings->Wifi->Advanced->Leave Wifi on when enabled
Especially the last seems to have done me good. I have it working in combination with BatteryFu so it does not consume my complete battery.

Androboyben said:
I've been getting this issue too but it seems to only be with our virgin router, all other devices connected to it are fine although the signal is a bit crap on them to its at least stable
I tried the modem flash etc but no improvement, I'm pretty sure its the ****e virgin router
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Well, the AP that I had problems with is a relatively recent D-Link 802.11n router. Nevertheless, I tried connecting with an old Cisco 802.11g router, and lo and behold - connection is now stable.
So, looks like there is indeed some interoperability problems but I won't dismiss this as a "****e <X-company> router" - as the same router is working well with other clients, and moreover, was working well with this phone when it was running an older GB firmware.
My conclusion is that apparently somebody at Samsung / Google has broken the Wi-Fi drivers, interoperability-wise.
1979Sentinel said:
At my side it seems to be working better now, steps I've taken (in this order):
1. Flashing new modem
2. Enter fixed IP address for my home Wifi
3. At Settings->Wifi->Advanced->Leave Wifi on when enabled
Especially the last seems to have done me good. I have it working in combination with BatteryFu so it does not consume my complete battery.
Click to expand...
Click to collapse
You probably mean leav wifi on when screen is off? My phone is already set this way... Anyhow, thanks, but it looks like this is a problem with a specific router as I wrote in the first part of this message.

[Q] "Wifi Disabled" on Lollipop

Hi, I'm wondering if anyone else if having the following problem:
Ever since updating to Lollipop, my Wifi Networks will not Auto-connect any more. I'll connect to a Wifi network, but then if I leave the area and come back later, my phone will try to connect, eventually give up and I end up with "Disabled" on that Wifi network. This happens on all three of my Wifi networks (Home, Work and School) (802.11ac/802.11n, WPA2/802.1x EAP, 5.0GHz/2.4GHz) and both Lollipop firmwares I've tried (23.1.A.0.726 US, 23.1.A.0.690 US). I can manually connect afterwards by going to the Wifi settings and choosing the appropriate network and connecting. This happens on locked and unlocked bootloader, stock kernel, AndroPlus v2 and AndroPlus v50, Xposed and no Xposed. This does not happen on Stock KK, rEctifY or CM12 (although I had some issues with some of the CM12 nightlies with 802.1x EAP + MSCHAPv2).
Any ideas on how to diagnose/fix?

I have this happen a lot on my shield tablet. On z3c too, but yo less extent. Dont knos what to do

tocirah1 said:
Hi, I'm wondering if anyone else if having the following problem:
Ever since updating to Lollipop, my Wifi Networks will not Auto-connect any more. I'll connect to a Wifi network, but then if I leave the area and come back later, my phone will try to connect, eventually give up and I end up with "Disabled" on that Wifi network. This happens on all three of my Wifi networks (Home, Work and School) (802.11ac/802.11n, WPA2/802.1x EAP, 5.0GHz/2.4GHz) and both Lollipop firmwares I've tried (23.1.A.0.726 US, 23.1.A.0.690 US). I can manually connect afterwards by going to the Wifi settings and choosing the appropriate network and connecting. This happens on locked and unlocked bootloader, stock kernel, AndroPlus v2 and AndroPlus v50, Xposed and no Xposed. This does not happen on Stock KK, rEctifY or CM12 (although I had some issues with some of the CM12 nightlies with 802.1x EAP + MSCHAPv2).
Any ideas on how to diagnose/fix?
Click to expand...
Click to collapse
I have the same issue on my Xperia Z1 now that it has received lollipop as well. This is about the only google result I've found for the same behavior though.

araemo said:
I have the same issue on my Xperia Z1 now that it has received lollipop as well. This is about the only google result I've found for the same behavior though.
Click to expand...
Click to collapse
Yeah I wasn't really able to find anything on Google either. Glad that Google's link y'all to my thread though .

Well, I am facing the same issue. I noticed that this only happens when my data is also ON. ( then my Z3 switches from Wifi to DATA)
If I disable data usage then the phone doesnt shut down the wifi.

Well I'm trying this:
http://android.stackexchange.com/questions/87907/how-can-i-stop-lollipop-ignoring-my-wifi-network
It's simple. In the terminal (requires root-make sure you do a SU prior to the below command), or in adb shell, issue the command:
settings put global captive_portal_detection_enabled 0​
After a reboot it found my WiFi at work and auto connected. Will see if it works when I get home.

CollinsJ said:
Well I'm trying this:
http://android.stackexchange.com/questions/87907/how-can-i-stop-lollipop-ignoring-my-wifi-network
It's simple. In the terminal (requires root-make sure you do a SU prior to the below command), or in adb shell, issue the command:
settings put global captive_portal_detection_enabled 0​
After a reboot it found my WiFi at work and auto connected. Will see if it works when I get home.
Click to expand...
Click to collapse
Didn't work.

I check this in Android source repo and unfortunately this only works for KitKat. I checked the Lollipop code and there is no setting to disable Captative Portal.

I have just read someone had success using a third party app called Wifi Switcher.
https://play.google.com/store/apps/details?id=org.l6n.wifiswitcher
Im going to try it see if it helps.

So having used Wifi Switcher for a day I have had no problems with auto connecting to saved networks. The app is not made to solve the issues with lollipop and auto connecting to networks, it is made to always connect to the saved network with the strongest signal. However by selecting and connecting to saved networks it seems to override the settings in lollipop that don't allow you to auto connect to certain networks. Not a perfect solution but I am happy with it.

Wifi Problem

A while ago, the wifi on my phone started to behave strangely. Sometimes, it wouldn't connect to my modem and other times connected flawlessly. Now it stopped connecting. 3 weeks have passed and it didn't connect to any routers. I changed my router, tried connecting to public, open wifi and friends wifi but nothing worked. I even bought a wifi antenna and replaced the one inside my phone & tried setting up a static IP but it still doesn't work. I was on N4 elite when the problems started, as usual I already tried the wipe cache etc.. flash stock 4.4.4 but still nothing. I'm on stock 4.4.4 now.
when I switch on wifi it searches and finds all nearby connections. but when I try connecting to one of them the signal strength meter decreases to zero and then it says saved.
Any solution? thanks in advance
@MaHo_66

LucasBass said:
A while ago, the wifi on my phone started to behave strangely. Sometimes, it wouldn't connect to my modem and other times connected flawlessly. Now it stopped connecting. 3 weeks have passed and it didn't connect to any routers. I changed my router, tried connecting to public, open wifi and friends wifi but nothing worked. I even bought a wifi antenna and replaced the one inside my phone & tried setting up a static IP but it still doesn't work. I was on N4 elite when the problems started, as usual I already tried the wipe cache etc.. flash stock 4.4.4 but still nothing. I'm on stock 4.4.4 now.
when I switch on wifi it searches and finds all nearby connections. but when I try connecting to one of them the signal strength meter decreases to zero and then it says saved.
Any solution? thanks in advance
@MaHo_66
Click to expand...
Click to collapse
You can try flashing a custom rom. Maybe it fixes your device. It can reveal if the problem is with your antenna or with your rom

JohnSmit268 said:
You can try flashing a custom rom. Maybe it fixes your device. It can reveal if the problem is with your antenna or with your rom
Click to expand...
Click to collapse
Tried lots of different roms, still doesn't work

Note 5 Wifi Turning On/Off Intermittently

Hi,
My Note 5 (SM--N920W) recently started to switch Wifi, on/off intermittently. Sometimes, the Wifi stays on for 15/20 minutes (like when watching youtube) and some time it turns on/off continuously (mostly, when downloading a large file with a continuous stream of data). I can see that in the phone settings, the Wifi button goes grey (to off position automatically) and turns blue automatically & tries to connect to the router, sometimes it stays connected for some minutes and sometimes it's just instantaneous that it goes grey again (Wifi off). This keeps on repeating.
The phone is updated to Android 7 (official ROM) and has been reset and also tried all different settings like turning off location completely, disabling wifi scanning etc but that didn't help. Any idea what could be wrong? Also, the phone is locked to a carrier for which I don't have the sim anymore. I am not sure if running it without sim is causing this wifi issue.
Thanks! Any help is highly appreciated!

If you can try using a different wireless router or network, and see if the issue persists. I had a similar problem awhile back, except it only happened when Bluetooth was on. I ended up buying a new router instead of the one I was using from Comcast, and it resolved the problem! Also I've similar issues with other devices, and editing the build prop and changing ro.securestorage.support=true to false in /system/build.prop might help.

asislife20 said:
If you can try using a different wireless router or network, and see if the issue persists. I had a similar problem awhile back, except it only happened when Bluetooth was on. I ended up buying a new router instead of the one I was using from Comcast, and it resolved the problem! Also I've similar issues with other devices, and editing the build prop and changing ro.securestorage.support=true to false in /system/build.prop might help.
Click to expand...
Click to collapse
Thanks a lot for the reply. I'll look into secure storage flag, though it looks like this is for the rooted devices, mine does not seem to be rooted (I bought it online, not sure if that was rooted earlier or not).
Another behavior I have noted, that initially the wifi for first few minutes works ok, no drops or switching on/off. But then it starts to go nuts turning on/off continuously. I am not sure if its a hardware issue, that somehow the wifi module gets hot after a few minutes of usage and starts to malfunction. But I have read somewhere on this forum, that the BT & WIFI are on the same module on the motherboard if the BT runs fine (which it does on my Note5), WIFI as far as hardware is concerned should be OK.
I haven't tried any custom ROM (though tried downgrading to Android 6.1 - ROM from sam mobile) but that didn't work. Any idea, which custom ROM is most stable and easy to apply?
Thanks!

If your on a stock unrooted rom, I'd definitely try another router, even if your just connecting to a friend's. If it doesn't occur then, its the router. As far as custom roms, I'm running the Note fan edition port by RadeonMaya, and it works great.

Wifi Issue after updating to OREO..

I am using SM-N950F, rooted with SuperSU.. I am having WIFI connection issue since I have updated t OREO..
After few minutes my connections show Exclamation mark and "Internet mignt not be available" message..
There is nothing wrong with my router as is it working fine on other devices.. and it was working fine with Nougat..
Please anyone help me with this issue..

I have the same issue. Not found a solution yet.
It's annoying. I'm on unlocked btu btw

I have the same issue after the Oreo update... It worked for weeks after the update, and suddenly I am experiencing the same "internet might not be available" issue. It affects Play Store too, I am unable to download or update apps, they get stuck on "Downloading" and eventually fail.
It is very annoying. I hope someone has some way to fix this or some explanation at least...
My N950F is not rooted, I am using the XEF official ROM.

I've been having the very same issues, no matter which Oreo released I've used, hard resets make no difference either.
The only way I've been able to get around this is by setting the router to use TKIP instead of AES, it seems this is the issue as even when tethering (which creates a hotspot using AES too) the connected device drops connectivity too.
So in summary, try changing your routers encryption method to TKIP, it's not as secure as AES but at this stage, it seems to be the only solution I can find.

Same issue it's annoying and killing my battery

I had the same issue and was a problem with one modem, not with my phone, because at work the wifi sucked, drops, low speed etc etc, but back home everything was great (even faster than Nougat)
What I did was to change the wifi security settings, Encryption algorithm was "AES only", change it to "TKIP/AES" and the problema is gone.

Have you tried wiping the Cache Partition in Recovery Mode? If that doesn't work then I would recommend that you try a Hard Factory Reset