Hi, I have a failover configuration. The domain controller's IP: 10.23.14.150 as dc01 The failover IP is: 10.23.14.155 as dcha I added an A and a CNAME record to the dns for the failover IP. It is working, i can see the shares, but I could not enter to any share as user, as Administrator it works. I tried to add the interface variable (i am not sure this is available in samba4), that wasn't helped. Thanks, Robert