Hi everyone, hope you're safe & healthy.
We've had a Wireless network (old SSID) for a couple of years, which users are authenticated via RADIUS (Windows Server 2008). It was working perfectly, but last week suddenly it has stopped doing its job.
To solve temporarily this problem, we created a new SSID with traditional PSK authentication, and it works fine, so we can connect to the Wireless Network with no need of the Server. But of course I'd like to get it working again through RADIUS.
When trying to connect to the old SSID, the vWLC shows this message on the logs:
*Dot1x_NW_MsgTask_1: Apr 05 09:30:46.432: %DOT1X-3-AAA_AUTH_SEND_FAIL: 1x_aaa.c:856 Unable to send AAA message for client [MAC ADDRESS]
In addition, the Windows Firewall from RADIUS server shows ports 1812 & 1813 in inbound open status (which are used to RADIUS authentication), but when I try to telnet, it is not possible (it seems that they are not really open).
From the server, I get this error in the application event viewer:
Negotiation failed. No available EAP methods.
And get this one from the network policy and access services:
Authentication failed due to a user credentials mismatch. Either the user name provided does not map to an existing user account or the password was incorrect.
So please, if anyone here has had this issue before, I'd really appreciate that you help me solving this problem.
If you require any additional information, let me know.
Please stay safe and at home.
Regards.
