Hello everyone,
We recently deployed 802.1x authentication on our campus network. However there's a peculiar issue we are facing when RDP'ing into a machine. Basically the behavior is, RDP session connects fine, but the session freezes and kicks the machine off the network. Then I can no longer ping it or remote into it.
We setup a restricted VLAN where if 802.1x fails, it fails over to the internet only VLAN (2350). I noticed from the switch logs after the RDP attempt, the switch puts the machine into this VLAN. See below for switch logs:
166670: Jan 30 15:53:41.614: %DOT1X-5-FAIL: Authentication failed for client (Un known MAC) on Interface Gi2/0/44 AuditSessionID C0A8110500020CBD2AF2EB70
166671: Jan 30 15:53:41.614: %AUTHMGR-7-RESULT: Authentication result 'no-respon se' from 'dot1x' for client (Unknown MAC) on Interface Gi2/0/44 AuditSessionID C 0A8110500020CBD2AF2EB70
166672: Jan 30 15:53:41.614: %AUTHMGR-7-FAILOVER: Failing over from 'dot1x' for client (Unknown MAC) on Interface Gi2/0/44 AuditSessionID C0A8110500020CBD2AF2EB 70
166673: Jan 30 15:53:41.614: %AUTHMGR-7-NOMOREMETHODS: Exhausted all authenticat ion methods for client (Unknown MAC) on Interface Gi2/0/44 AuditSessionID C0A811 0500020CBD2AF2EB70
166674: Jan 30 15:53:41.614: %AUTHMGR-5-VLANASSIGN: VLAN 2350 assigned to Interf ace Gi2/0/44 AuditSessionID C0A8110500020CBD2AF2EB70
Any ideas?
Our community of experts have been thoroughly vetted for their expertise and industry experience.
The Distinguished Expert awards are presented to the top veteran and rookie experts to earn the most points in the top 50 topics.