[Samba] NT_STATUS_INTERNAL_ERROR

[Ricardo Pardim Claus]

Dear,I found the solution to the error: NT_STATUS_INTERNAL_ERRORThis error acontencia in Samba versions: 4.4.4, 4.4.5 and 4.5.0rc1.For my case, after checking the logs, something wrong about authentication.I solved the problem by releasing the ports and services (AD, DC, DNS, SMB, etc.) on the firewall. In Centos 7, I had already released these ports, but can not explain why he returned to block everything.the tip is recorded if someone will go through this problem.Greetings to all !