Only see a part of the computers, servers and other network resources in a network

Only see a part of the computers, servers and other network resources in a domain?

Solution:

DNS server manager, under DNS, right-click the server name, choose 'Set aging/scavenging for all zones...'.
Tick 'Scavenge stale resource records'.
Right-click 'Reverse Lookup Zones', choose 'Set aging/scavenging for all zones...'.
Tick 'Scavenge stale resource records'.