Symptoms
User is getting an error upon login when Forms Authentication is enabled:
"Failed to sign in with given user name and password"
Diagnoses
The following error was logged:
"Authentication With Server Failed : Logon failure: the user has not been granted the requested logon type at this computer"
Resolution
After giving domain users in NDC "Log on as a batch" rights in the Local Security Policy of the K2 server, it enabled the user to log into K2 Designer. Here are some links regarding this:
https://technet.microsoft.com/en-sg/library/cc755659(v=ws.10).aspx
https://technet.microsoft.com/en-us/library/cc732593(v=ws.10).aspx
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/Q_23826570.html