Server Administrator - repost 2

Just replaced server. Word and Excel are linked; however, the name of the new server is named differently. . When i open an older MS Word files, the links is trying to reach the old server (due to embedded links). Need re-configure path directory to look for the same directory in NAS. All the workstations on a network and a login script remapped the directory for all computers on network, but one of the computers can login, but the drives are not created correctly. Need the network discovery and file sharing is turned on (like the image attached)