cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements
285
Views
0
Helpful
1
Replies
InfraISE2020
Beginner

5400 Authentication failed Windows 10 clients

Hi,

 

We have recently come across an issue where our Windows clients are getting prompted to enter a username/password when connecting to our corporate network. Nothing has been changed on our environment and its been working fine until a few weeks ago. The only change is users have been upgraded to Windows 10 1909, nothing has changed on ISE. 

 

I have looked through the logs and we're getting an event "5400 Authentication Failed" "11514 Unexpectedly received empty TLS message; treating as a rejection by the client", screenshot of the error attached.

 

Has anyone else come across this issue and have you been able to resolve it. 

 

Thanks in advance. 

Ashley

 

1 REPLY 1
Sheraz.Salim
VIP Advocate

This seem to be a certificate issue. check on ISE certificate tab if EAP authentication certificate is expired. if it down you need to generate a new CSR on ISE and get this signed by your CA. once Signed from your CA upload the cert on ISE. This will fix the issue.

please do not forget to rate.
Content for Community-Ad