In events of HSDS
DLP 16.1 and above
in the EnforceConnectorCommunication.properties
check tcp.server.bind.address.and.ports=0.0.0.0:8100
change the check tcp.server.bind.address.and.ports= from 0.0.0.0 to the local IP address of the detection server.
for example
check tcp.server.bind.address.and.ports=192.168.1.x:8100
Restart the detection server after the change.