Server error
An error occurred when the appliance tried to join the Active Directory domain. If you receive this error, ensure that the following are true:
- The detected or configured Domain Controller is currently running.
- The required ports between the appliance and the Domain Controller are open
bi-directionally; these are:
Port 123 is only required if the Network Time Protocol server is set to the local Domain Controller on the page.Port Protocol Service Purpose 53 TCP & UDP dns DNS query 88 TCP & UDP kerberos Kerberos authentication 123 UDP ntp Clock synchronization 139 TCP netbios-ssn MS NetBIOS over TCP/IP 389 TCP & UDP ldap LDAP synchronization 445 TCP smb MS server message block 3268 TCP & UDP msgc MS AD Global Catalog synchronization - The network connection between the appliance and the Domain Controller is working.
If the above checks fail to identify the problem, please contact Sophos Technical Support .