Radius authentication failed - Error: Authentification server not responding:no error
Hi, first of all, sorry for my english :(
I have a problem with a cisco asa 5510 appliance and the AAA authentication. Sometimes I get the error of the title. But this error does not appear all the time. It only appears sometimes. I´m going to explain our configuration:
The cisco ASA has the ip 10.0.0.1/16, and the radius server has the ip 10.0.3.40/16. Comunication between both devices is ok, ping responses with 100% rate, and the server radius has the windows firewall disabled. Server Radius is part of a domain, and in the other hand, we have another three domains that contain the users accounts. Trust relationships between all domains work perfectly: every users can log into the server radius.
Users connect the vpn using cisco anyconnect client (ver.3.1) and sometimes users of one of the domains receive the message: "Connection attempt has failed due to a network or pc issue". In that cases, I have test the connection from the cisco appliance to the server radius using the test button in AAA server configuration from ASDM, and I have observed that users of one of the domains fail, but testing with accounts of the others domains results ok.
To solve this issue I only have to reset the secret key in both Cisco ASA and Radius Server, and all users from all domains work fine again.
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