We have three systems A, B and C. A is the main server, B and C are sub servers which can be accessed only from A. Now we have a problem like C is accessible from A. But B is not accessible from A. We had a power shut down so servers get restarted. From that time we are facing this issue we changed B’s ip to name to access from A. problem was solved but again the servers restarted due to power shut down now from name also its not accessible. We have scheduled crone for backup process from A to B and C we have backup in C but problem is in with only B.

We tried changing the network sharing options and checked firewall settings. error log shows incorrect username and password.