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