WLC unreachable

[s.hellman]

We have four WLC 5508, and a PI 2.2. We upgraded WLC one and two without any problems to 8.0.110, but when we upgraded WLC three it became unreachable in PI. Restart of PI and WLC did not fix it. I tried to remove the controller in PI but get the message: Error:Unknown Exception Occurred.

The configuration should be the same on all controllers. WLC three runs ok, it is just that I cant reach it from PI.

If I try to update credentials for WLC three in PI, i get the message: Error while updating SNMP/Telnet credentials

Any ideas??

[Scott Fella]

On the controller, check to see if PI is configure under the snmp trap receivers.  If your using snmpv3, try snmpv2 to see if that takes or not.

-Scott

[s.hellman]

PI is configured as trap reciever. I was using snmp v2, trying to change credentials to v3 in PI resulted in the same error: Error while updating SNMP/Telnet credentials

Trying to change snmp in controller configuration in PI resulted in the error:

Error:COMMON-1: Some unexpected internal error has occurred. If the problem persists please report to the Tech Support.

Error:Detail: errorId=8 Invalid credential name: DEVICE_PACKAGE_FINGERPRINT.

[s.hellman]

I tried a MIB-browser to the controller and SNMP is ok, so the problem seems to be in PI.

Is there any other way to delete the controller in PI besides Configure>Controllers, check the controller and choose Remove Controller?

[Scott Fella]

Open a TAC case as they might be able to query the DB and remove the entry. Other than that, the inly way to delete the controller is what you have posted.  I had a similar issue but was during the early stages of the project. I basically just installed a new instant of PI and started from scratch. Much faster than trying to figure it out. 

-Scott

[s.hellman]

Yes, I have opened a TAC case, hope they can help me.

I am not that keen on starting from scratch, have much maps and stuff.

Thanks for your time Scott.

[s.hellman]

The poblem is solved.

I am always using Classic Theme, and there was no way to get contact between the controller and PI, or to delete the controller.

I switched to Converged Theme and there was the possibility to do a syncronize between the controller and PI, and that fixed it!

Maybe its time to be using Converged theme...