IAS Event ID 2 Reason Code 16

[Marc]

I keep receiving Reason Code 16 (Authentication was not successful because an
unknown user name or incorrect password was used.) on valid accounts it was
working fine then our Enterprise Root Certificate Expired. I had to
uninstall and reinstall CA on the Root then it was ok. But then we had 1
user that could not connect to the wireless. I noticed on our IAS server
(which is a domain controller and GC) that it still had an old certificate.
Once I removed it most of the user's wireless gets the ID 2 now RC 16 error.
Others do not. The one that was not working is now working.

I've removed the old certificate from one that doesn't work along with the
cert that is assoicated with the account in AD, sync'd the domain, and
restarted IAS and I still receive the error. Any ideas?

[Andrei Ungureanu [MVP]]

You can find some things about this event id here:
http://www.eventid.net/display.asp?e...ce=IAS&phase=1
I really don't know if the information from there applies to your case but
you can try.

--
Regards,
Andrei Ungureanu
www.eventid.net
Test our new EventReader!
http://www.altairtech.ca/eventreader...lt2.asp?ref=au
..
"Marc" <Marc@discussions.microsoft.com> wrote in message
news:CED1C713-2784-438D-BEC3-5C9F09044DEF@microsoft.com...
>I keep receiving Reason Code 16 (Authentication was not successful because
>an
> unknown user name or incorrect password was used.) on valid accounts it
> was
> working fine then our Enterprise Root Certificate Expired. I had to
> uninstall and reinstall CA on the Root then it was ok. But then we had 1
> user that could not connect to the wireless. I noticed on our IAS server
> (which is a domain controller and GC) that it still had an old
> certificate.
> Once I removed it most of the user's wireless gets the ID 2 now RC 16
> error.
> Others do not. The one that was not working is now working.
>
> I've removed the old certificate from one that doesn't work along with the
> cert that is assoicated with the account in AD, sync'd the domain, and
> restarted IAS and I still receive the error. Any ideas?