Problems with Radius and WLC.

[HectorNazarenoVasquezMoran2564]

Hi good morning.

I have a WLC to manage access to the network with AD credentials and also a gpo to manage the access, recently I had tried to change the Radius server in the confguration, I migrated the old configuration from the old radius server to the new server, but when I made the change I got the followings error(See screnshoot) and I search on the Raidus server but I dont find any logs, also I can ping the new radius server, I received the error the radius server failed to reply request ID(21,22 and others).

Do you any idea for solve that?

Best Regards,

[balaji.bandi]

Make sure WLC reachable to Radius Server, and WLC IP added in to new Radius Server ?

Do you have any FW  in between ? in the path WLC to radius, what other device involved, you need to check ?

[MHM Cisco World]

WLC radius config under WLAN ?

[Sadav Ansari]

Hi,

Make sure your new radius server should be added on WLC with correct shared key.

 

new wireless lan controller keeps failing rdius authentication with errors like this

RADIUS server 10.x.x.x:1645 deactivated in global list

RADIUS server 10.x.x.x:1645 failed to respond to request (ID 65) for client 00:0b:6b:87:54:d2 /user ‘unknown’

the problem is 2 fold the cisco wireless lan controller radius configuration defaults to a time out of 2 seconds.

you can find this in security/radius/authentication/and your server

change that to 20 seconds

save your configuration

now ssh into the controller using putty or some other app.

run the following command

config radius aggressive-failover disable’

save your configuration and reboot the controller and you should have no more troubles with the radius authentication.

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[HectorNazarenoVasquezMoran2564]

Actually I have my WLC in 2 seconds, I will try with 20 seconds and I will tell you the results.

[bsmagulov1]

Here you can find some advice on the topic:

https://youtu.be/lZl_jv1keg8