I have cisco infrastructure with cisco catalyst 2960 and 3560 and 2x ACS 4.2 and 802.1x authentication is work fine.
I tried to add Linksys SRW2016 in the infastructure but I run into a problem.
I did the configuration on ACS same as for all other switches and I configured SRW2016 according maunal for .1x and on log on ACS in FAILED ATTEMPTS I received following error:
Message-Type: Bad request from NAS
Authen-Failure-Code: Invalid message authenticator in EAP request
I receked the configuration specialy the Shared Secret and it is OK.
Any idea what is the problem and how to resolve it?
That is mostly indicative of a bad shared secret. Can you confirm whether the Linksys switch is in a NDG, and if so, do you have any keys defined for the NDG?