dcdiag /test:dns /v /s:DC1
PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.168.1.220 [Error details: 1460 (Type: Win32 - Description: This operation returned because the timeout period expired.)]
DNS delegation for the domain _msdcs.DC1. is broken on IP 192.168.1.220
[Error details: 1460 (Type: Win32 - Description: This operation returned because the timeout period expired.)]