PUT IP ADDRESS OF CLIENT AS SAME SERIES AS DOMAIN SERVER.
PUT THE DNS IP OF CLIENT AS SAME AS DOMAIN SERVER.
CHECK TIME OF CLIENT AS PER SERVER.
CHECK SERVICES OF CLIENT.
CHECK FIREWALL RULES, PORT 445 MUST BE ENABLED.
IF NOT WORKING CHANGE THE COMPUTER NAME AND TRY.
CHANGE THE PRIMARY DNS NAME IF EXISTING WITH AN ERROR.
OPEN CMD PROMPT AND TYPE 1) IPCONFIG FLUSHDNS
2) IPCONFIG REGISTERDNS