I sent messages by login interface.but it returned error message. The authority is Windows NTML.
What is the language? Does the user name use double-byte characters or anything going beyond the english latin letters?
What is the OS and the language of the OS used?
When you see this error can you log in with the same user in a Smart Client.
I fixed it.The reason is something wrong with sqlServer.After restart the sqlServer the interface works well.