Wifi keeps disconnecting and reconnecting frequently I have an android phone running 4.2.2. I am using TP-LINK ADSL router and the connection is stable. But everytime I open an app that tries to access internet, my connection keeps connecting and disconnecting frequently. I have other phone running on same version of android but the connection is stable on it. What could be the problem. Any useful suggestions are welcome.
I had a similar problem in that my tablets would connect/disconnect and my laptops would be just fine.

So here was my solution. This may or may not help but worth a try. You don't say what the other phone is. Different OS or whatever.


Anyway log into the router and look at the wi-fi settings.
First go to Accessories, Command Prompt, type in ipconfig and look at your gateway IP and put that number in your browser address bar and do a CR>. (I type in a different number than my Gateway IP, maybe because I have Mediacom as my IP provider)
Now you will see a box that comes up and something that calls for a Username &amp; Password. 
Type in ADMIN, PASSWORD. Either all CAPS or all lower case. If that doesn't work, just try the word "username". If that doesn't work then you need to call your IP and have them reset because ADMIN and PASSWORD is the default. 
Anyway if you get in, go to SETUP Wireless Settings.Your channel should be on Auto, and your Security settings should be set to:
WPA-PSK[TKIP] + WPA2-PSK[AES
Grant you I have an "older" router. There may be newer stuff out there. But since this is the only answer you got so far, it's worth a shot to try and see if it gets better.


The other problem may be a short in the antenna which means cracking open the phone and soldering it, possibly blowing the warranty. Actually, I don't think I'd mess with that myself unless I figured I had nothing to lose and had tried all other options.
 I'd also try using a buddie's Mi-FI or another cell as a hot spot and see if that works. If it's a no-go, it probably is the antenna.