So I've been using the AnyConnect client for my ASA5540 for a few months now, mostly with success. I am set up for both local authentication as well as RADIUS through my NPS server. Most of the time I am able to connect with no issue at all, however occasionally myself and other users receive a "Login Failed" message and the client will refuse to authenticate. I am 100% certain my credentials are valid and my account is not locked out. I have not made any changes to my firewall or my NPS and I am currently unable to log in with either authentication method.
Why is it failing to log in sometimes? What can I do to troubleshoot this?
EDIT: One of my users that was experiencing this issue can now log in. I am still receiving the Login Failed message.
EDIT2: As of this morning, I am now able to log in. I have not made any changes to my firewall, NPS, anything that would affect this.
