This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice This article is not considered official documentation for K2 software and is provided "as is" with no warranties.
Error encountered when accessing K2 Workspace and K2 Designer:
"Login failed. The login is from an untrusted domain and cannot be used with Windows authentication."
Looking at the Application Event logs on the SQL server, the error below is logged numerous times and it seems to be related to a connectivity issue from the K2 server to the SQL server.
"SSPI handshake failed with error code 0x80090311, state 14 while establishing a connection with integrated security; the connection has been closed. Reason: AcceptSecurityContext failed."
To resolve the error, kindly reboot the SQL server.