Wondering if anyone got solved issue related to 12937 Supplicant stopped responding to ISE after sending it the first inner EAP-MSCHAPv2 message

[skc455]

I was wondering if anyone has already resolved this issue before. 

I have a new PC,  which has been provisioned for PEAP- MSCHAPv2. There is a phone and pc connecting on thIdentity Service Enginee same switchport. We are running ISE 2.4 in our environment. When connected to Ethernet am seeing error message on ISE as :

Event	5411 Supplicant stopped responding to ISE
Failure Reason	12937 Supplicant stopped responding to ISE after sending it the first inner EAP-MSCHAPv2 message

Attached the dot1x debug from switch. 

Trying to identify what's causing this issue. Thanks in advance for helping me in identifying the issue.

[AbelBurgos5029]

Hello,

Did you resolve this issue already?

[skc455 · Accepted solution]

Issue was with the network drivers on the NIC card. Downgraded the dell nic drivers which solved the issue.