topic RE: Andriod phone disconnected randomly from Wi-Fi in ExtremeWireless (General)

Andriod phone disconnected randomly from Wi-Fi

Gaurav1 — Fri, 14 Jul 2017 06:25:00 GMT

We like to use Andriod phones as SIP clients but Phones disconnect from network randomly. They may not disconnect for 2 days or may disconnect in 2 hours. If two phones sitting next to each other, one stays connected, another disconnects. To bring them back, we need to move out of coverage area and come back or turn off the wi-fi and turn on again. We have cisco WLC and cisco APs for wifi network.
I used an APP called Wi-FI fixer, and attached are logs

RE: Andriod phone disconnected randomly from Wi-Fi

Timo1 — Fri, 14 Jul 2017 10:45:00 GMT

Sounds like a client problem. What devices do you use? Any logs from the WLC?

RE: Andriod phone disconnected randomly from Wi-Fi

Gaurav1 — Fri, 14 Jul 2017 10:45:00 GMT

Thanks, I am using a Samsung S5 phone. Can't see much information from WLC.

it is very random.

RE: Andriod phone disconnected randomly from Wi-Fi

RobertZ — Mon, 17 Jul 2017 18:22:00 GMT

can you provide more info on the sip client?

RE: Andriod phone disconnected randomly from Wi-Fi

Gaurav1 — Mon, 17 Jul 2017 18:22:00 GMT

I am using zopier or Csipsimple app from Android store but it is network disconnection issue.

I could understand if network drops after 30 mins but it is very random. sometimes it works for 2 days.

RE: Andriod phone disconnected randomly from Wi-Fi

RobertZ — Mon, 17 Jul 2017 18:22:00 GMT

Have you checked for latest Android OS update? you may have an old version of OS. BTW what is the Android device you're using?

RE: Andriod phone disconnected randomly from Wi-Fi

Ronald_Dvorak — Mon, 17 Jul 2017 20:47:00 GMT

"We have cisco WLC and cisco APs for wifi network."

Have you tried to get help in the Cisco forum ?

RE: Andriod phone disconnected randomly from Wi-Fi

Gaurav1 — Tue, 18 Jul 2017 04:52:00 GMT

Yes cisco have checked WLC config and they think, it's fine.

RE: Andriod phone disconnected randomly from Wi-Fi

RobertZ — Tue, 18 Jul 2017 08:50:00 GMT

Here is a doc we at zebra/moto used to provide for VoIP deployments in Cisco environment. I hope it helps..

Deploying VoWLAN Over Cisco Wireless Networks