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Implications of disabling NetBIOS over TCP/IP on the ePO server
Technical Articles ID:   KB76756
Last Modified:  8/16/2019


McAfee ePolicy Orchestrator (ePO) 5.x


In previous versions of ePO, several functions depended on NetBIOS over TCP/IP. If you disabled this protocol, ePO operations would be impacted. Current versions of ePO are less dependent on this protocol. 

If you disable NETBIOS over TCP/IP using the following steps, no major functionality in ePO is impacted:
  1. Open the Network Adaptor.
  2. Click PropertiesInternet Protocol Version 4 (TCP/IPv4)PropertiesAdvanced.
  3. Select the WINS tab.
  4. Select Disable NetBIOS over TCP.
NOTE: If any settings other than the ones listed above are changed, this support statement does not apply.
The following features were tested in ePO 5.9.x and 5.10.0, after NetBIOS over TCP/IP was disabled using the steps described in this article. No failures were found.
  • Push the McAfee Agent install using system name only
  • Dynamic Permission set assignment and NT User authentication
  • LDAPSync
  • Active Directory Sync

The only feature impacted is Domain Synchronization, which is sometimes called NT Domain Sync or domain browsing.

Domain Synchronization is a legacy protocol in Windows, originating in Windows NT, and relies on NetBIOS. Active Directory Sync, which uses the LDAP protocol and is not affected by disabling NetBIOS, replaces Domain Synchronization.

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