Hi,
I have three demo server SYS1.com(DC), SQL1.SYS1.com, SQL2.SYS1.com
at SQL2 it can connect SQL1 via SSMS
at SQL1 it returns "Login failed. The login is from an untrusted domain and cannot be used with Windows authentication." when connect to SQL2.
May i know how to troubleshoot and main cause? thank you.
I tried to re-join domain but fails.