My server name is displayed as an IP address

Possible Cause:  DNS server information has not been configured on the site server.

Possible Cause:  SNMP information has not been discovered.

Possible Cause:  The System name of the server has not been set.

Action:  Perform the following tasks:

1. Specify the IP address of the server.

2. Specify the SNMP READ/GET community string.

3. Select the MIB-II variable sysName in the system group (iso.org.dod.internet.mgmt.mib-2.system.sysName).

4. Click Tree Walk.

   If the name here is NULL or something incorrect, set the correct name and wait for discovery to refresh the information in its next cycle

For more information see The DNS names of my machines are not displayed and My workstations are not discovered.