restart wireless controller C5210

[Laura4]

How come when I restart the wireless controller C5210, all of the radio channels show "off", even though none of the APs are down? I want to be able to see what channels the APs are using, so I can change them in case interference.

[Doug]

There can be many reasons why you may have connection issues with wireless clients. If you are still experiencing issues you may want to give us a call. Typically we will ask you for specific details like...

- Is the connection issue in one area or all throughout the wireless system?
- Is the connection issue happening with a specific client type? (Apple,Chromebooks, etc...).
- Is this only on one service (SSID) or all?
- Are clients getting IP's but unable to pass data?
- Any authentication involved?

The Tech when you contact support will also ask you to generate a Tech Support file from the controller with the problems on "Logs".

http://gtacknowledge.extremenetworks.com/articles/How_To/How-to-Collect-a-Tech-Support-File-From-a-W...

[Laura4]

We have it setup up for 50/50 right now.However, when we get to the point of adding more APs, we have the foreign controller for more room. In the future, if we have enough APs, using 2 controllers; will the second controller still be able to backup all the APs from the primary controller and still be able to manage all its own APs?

[Laura4]

we were having issues with clients getting on the wlan SSID, so the manager decided to restart our wireless controller.

[Doug]

Correct, we call that feature Availability. Some customers will split the ap load 50/50 between controllers or use a second controller as a hot standby in case the primary one goes offline.

[Laura4]

so i just found out, that it was a backup controller. when the primary restarts, it kicks all its aps off which then go to the foreign controller(backup). right?