I have come across this issue twice now, Just before I wanted to roll it out to a test selection of users.
Everything works fine then all of a sudden I get Authentication Failed with the sophos banner on every webpage I try to view.
The error message I get is:
'2014:07:11-16:40:59 SophosUTM httpproxy[7599]: id="0003" severity="info" sys="SecureWeb" sub="http" request="0xf15a220" function="adir_auth_process_negotiate" file="auth_adir.c" line="1558" message="gss_accept_sec_context: Key table entry not found" '
"Key table entry not found" being the important part I feel, If I restart my computer this resolves its self, If I change the proxy to the IP address this also works."
There seems to be no mention of this error or there being a bug in 9.203, Connected with standard proxy and AD SSO.
Hope someone has seen this before.
Rob
This thread was automatically locked due to age.