Phone gets lag when connect / disconnect from wifi - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Whenever i turn off or get disconnect / connect to a wifi, my phone will always stop responding to any touches to the screen for about 5 to 7 seconds. Even though i have root and xposed but i tried to restore to stock ROM and it still occurs too. Is there any solution for this?
My model is SM-A800I
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WiFi turn itself off after 10-15 seconds

Hello.
I'm experiencing a weird problem. When I turn on WiFi it starts scanning and after 10-15 seconds it turn itself off, without showing any available networks.
Running 1.83, rooted.
Any ideas?
Thank you.
Reflash sbf
Sent from my GT-I9100 using XDA Premium App

Wifi turning off and on

I'm running AOKP and when j turn my screen off the Wi-Fi turns off after a while and normally I wouldn't care except that when I am at work I have to go accept terms and condition every time it turns back on and its annoying is there any way to stop that
Sent from my Nexus 7 using Tapatalk 2
Settings wifi options advanced keep wifi on during sleep
I have the same problem ... but in advance wifi it's already allways keep wifi on ...
this disconennection won't happen if the music player is playing or the phone is charging...
Any idea?
Sent from my GT-P6200 using Tapatalk 2
Weird, it's acting like it's set to only stay on when charging.
While downloading or streaming the wifi will use wake lock to keep the device from sleeping and turning it off.
Are you on a custom rom by any chance? My best bet would be to switch back and forth between the settings a bit and do a reboot maybe, that's all I got

No wifi

Guys I'm trying to fix my daughters phone, I've looked around and I tried a few things to no avail.
The issue is the phone is on 4.4.2 nb1 from an ota update. The phone used to be my sister in law's. Before she gave it to my daughter she did a factory reset and now Bluetooth and WiFi both won't turn on. No matter what you do.
I tried to Odin a stock nb1 image to see if maybe the ota update was corrupted or something but it only starts and runs for like 2 seconds before it will just hang and do nothing.
Any ideas?
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Has anyone ever had a problem to where the WiFi wouldn't turn on?
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goddi2010 said:
Has anyone ever had a problem to where the WiFi wouldn't turn on?
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Click to expand...
Click to collapse
Try turning wifi power save mode off. Dial *#0011#, press menu then wifi and then switch it off and see if it does anything.

Note 2 wifi problem: Please Help.

My wifi was working very well. One day suddenly it went off. Initially I thought it was a connection problem, but eventually I discovered that the wifi toggle switch refused to start. It was stuck.
I did not upgrade or change anything (Currently running stock android 4.3.) In a bid to correct it I even did a factory reset. But wifi issue remained.
Did everything mentioned in various YouTube videos. But in vain.
The only way I can turn it on is by switching off the phone, removing the battery 4 a minute and restart. Wifi worked but to 5 to 10 min only.
Removing battery every time 2 start wifi is nuisance.
Pl advice.
Sent from my GT-N7100 using Tapatalk
ceomaverick said:
My wifi was working very well. One day suddenly it went off. Initially I thought it was a connection problem, but eventually I discovered that the wifi toggle switch refused to start. It was stuck.
I did not upgrade or change anything (Currently running stock android 4.3.) In a bid to correct it I even did a factory reset. But wifi issue remained.
Did everything mentioned in various YouTube videos. But in vain.
The only way I can turn it on is by switching off the phone, removing the battery 4 a minute and restart. Wifi worked but to 5 to 10 min only.
Removing battery every time 2 start wifi is nuisance.
Pl advice.
Sent from my GT-N7100 using Tapatalk
Click to expand...
Click to collapse
I would advice you to do the following
=>Disable all power saver settings
=>Remove any battery saving App
If it doesn't work try
=>Installing the newest Official Firmware from Samsung(4.4),Download it from the sam mobile site
If that doesn't work well then i cant help you anymore
Hope that helps and hit the thanks if i helped
Dear Sammy,
I did exactly the same. Installed the 4.4.2 but a new problem has emerged. Wifi shows connected. I can also see the white wifi icon on status bar. But in fact is not connected. Can't open anything. Not even router configuration ip address.
To make sure it was not a modem/ router issue, I checked d connection on another phone. It was working perfectly.
Here too I tried switching off for couple of minutes but on start it just shows connected when it is actually not. (Confirmed several times on other phone)
Plz help.
Sent from my GT-N7100 using Tapatalk

wifi and bluetooth hangs the device

When i turn on bluetooth while wifi is also turned on my phone freezes. Does anyone also have this issue? And is there a fix for this issue?
Stock or custom? Nougat or Oreo? BTW, no problem here.. my WiFi is always active, and in my car, also the bluetooth... No problems whatsoever. Maybe you should do a factory reset...
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Stock, nougat on b210 right now. I am facing this problem from the start my phone always hangs when i turn on bluetooth while wifi is on. I also tried factory reset but it didn't fix my problem.
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Anyone?
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asadali4646 said:
Anyone?
Click to expand...
Click to collapse
If you have the latest software for your device installed and factory reset didn't work, then you should RMA the device.
I have the same freeze but not with the bt on like you have , If wifi is on and device go to sleep on screen off it will stuck and hang cpu gets warm and phone hang even can't restart the regular way, the only solution is to turn off wifi before locking the phone or just set wifi to always on on setting.
Yesterday my phone totally freezed for about 15 minutes i was not about to force restart it also. My wifi was on. I turned on bluetooth to share a picture. As soon as i turned it on my phone got stuck.
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