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Implications of disabling NetBIOS over TCP/IP on the ePO server
Technical Articles ID:   KB76756
Last Modified:  7/9/2018


McAfee ePolicy Orchestrator (ePO) 5.x


In previous versions of ePO, several functions depended on NetBIOS over TCP/IP. If you disabled this protocol, it significantly impacted ePO operations. 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 Properties.
  3. Click Internet Protocol Version 4 (TCP/IPv4).
  4. Click Properties, then click Advanced.
  5. Click the WINS tab.
  6. Click Disable NetBIOS over TCP.
NOTE: If any other settings are changed beyond the ones previously listed, this support statement does not apply.

The following features were tested in ePO 5.3.2, 5.3.3, and 5.9.0 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 (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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