- reconfigure a switch and reconfigure the Radius server for that switch to eliminate the possibility of configuration mismatch. I would be sure to key in clear text keys rather than cut and paste some encrypted value which you assume will be the same on both ends.
- look on the server to see if there are any log entries that indicate that it saw authentication requests and why they failed.
- run debugs on the switches to see what they are reporting.
I switch wasnt giving a clear reason in the event log apart from saying that there was an authentication failure. After reconfiguring the switches over and still getting failures I stopped the IAS service for about 5 mins, which is a rather long time, but after restarting the IAS service the switches responded, so it was more of a Microsoft IAS end of a problem
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...