T48G with SfB Firmware can't Signing in

[jvoros]

we've had this also on occasion.

check that the UPN for the user is the same as their email address, otherwise one of those user fields is the UPN value, not email or AD username.

Also, we've set the trusted root certificate setting from enabled to disabled and that gets us past in the few cases this has happened to us.

Also, you can have the user try logging in via the web gui and the error messages are a little more verbose than the screen. You can also set logging to 6 and then looking into the log will tell you a little more about what might be wrong.

But the allow the untrusted certs setting does get us past in some cases where all else fails. No idea why.