Hi All,

I've got some problem with k2 authentication. It is occor about one time in 2-4 week. My organize use k2.net 2003 sp2a and 2 windows servers 2003 work with loadbalance hardware. We set it up with kerberos authentication.

Sometime Webapplication can not authenticate with k2 on kerberos setting. Ans also K2 service manager can not authenticate too. I've got error like "Authentication with server failed" on K2 service manager. When error occured, it failed only one server, not both servers on same time.

Error logs are following: 

file: K2Error.txt

07-09-50 02:19:58    AuthNative: AcceptSecurityContext failed: The logon attempt failed
07-09-50 02:20:11    AuthNative: AcceptSecurityContext failed: The logon attempt failed
07-09-50 02:21:37    AuthNative: AcceptSecurityContext failed: The logon attempt failed
07-09-50 02:21:38    AuthNative: AcceptSecurityContext failed: The logon attempt failed

file K2Server.log

07-09-50 02:19:18    Authentication with server failed
07-09-50 02:19:23    Authentication with server failed
07-09-50 02:19:37    Authentication with server failed

Temporary solution is restart k2 server service. But it is not good way to do. What are root causes of this problem? I try to search on history topic, but i can not found any topicrelated to this problem. T_T

Thank you for kindly help :)