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Network discovery issues in Bitdefender GravityZone

This section provides instructions for troubleshooting network discovery issues. To learn how network discovery works, refer to How network discovery works

Bitdefender GravityZone relies on multiple network scanning techniques to perform network discovery.

Network discovery may fail due to NetBIOS name resolution problems, communication issues between Bitdefender Endpoint Security Tools and Control Center, or internal errors.

Important

Before you proceed with troubleshooting, consider the following:

  • In complex network environments consisting of multiple workgroups and domains, it may take a few hours for all the endpoints to be detected and displayed in Control Center.

  • When new endpoints are connected to the network, they are not displayed in Control Center immediately. Depending on when BEST performs the network discovery, it may take some time until new endpoints are identified and reported.

Within a few minutes of installing Bitdefender Endpoint Security Tools, the Computers page of Control Center shows most endpoints on the network as unmanaged.

No endpoints are displayed after installing the first instance of BEST

To resolve this issue, follow the steps below:

  1. Make sure the endpoint is online and is displayed as managed in Control Center.

    1. Go to the Network page from the left side menu to view this information.

    2. If the endpoint is offline or appears as unmanaged, identify and troubleshoot the condition that prevents the communication between BEST and Control Center.

    3. After solving the communication problem, wait four hours until network discovery is performed again, or apply a Run network discovery task.

    4. If the endpoint is online, verify that the Automatic discovery of new endpoints setting is checked in the policy that is applied on the endpoint. If the setting is unchecked, the automatic network discovery is not enabled.

    5. After checking the setting, depending on the network infrastructure, wait a few minutes until automatic network discovery is performed.

  2. On the endpoint performing network discovery, make sure the endpoints are displayed under the File Explorer > Network section.

    The same endpoint list should be available in Control Center.

    • If no endpoints are displayed under the Network section enable network discovery in the Control Panel > Network and Internet > Network and Sharing Center > Change advanced sharing settings section.

    • If endpoints are displayed under the Network section, but not present in Control Center, contact Bitdefender Enterprise Support to further investigate the matter.

  3. Make sure the following services are running on the endpoint performing network discovery and the endpoint(s) to be discovered:

    • DNS Client

    • Function Discovery Provider Host

    • Function Discovery Resource Publication

    • HomeGroup Provider (for Windows 7)

    • SSDP Discovery

    • UPnP Device Host

  4. Make sure the endpoint is in a workgroup or domain, and connected to an IPv4 local network.

  5. If the endpoint is in a workgroup, check if there are other network endpoints in the same workgroup. If the endpoint is in a domain, check if there are other endpoints in the same domain, and if the connection to the Active Directory server is available. You can ping the Active Directory to perform this check.

  6. Make sure the network endpoints have a policy assigned to them in the Policies > View Policies section in Control Center.

    If a policy is not assigned, create one from the Policies > Create New Policy section.

  7. Make sure that media streaming is enabled.

No further endpoints are displayed after installing BEST on additional endpoints

After installing each BEST, you might need to wait for about an hour before network discovery is performed and detected endpoints are displayed in Control Center.

If the endpoints are not displayed in Control Center, first perform the troubleshooting steps above. If the issue persists, check the following possible causes:

  1. The endpoints are directly connected to the Internet, but are not connected to their local network.

  2. The endpoints are in a workgroup or domain where BEST has not been installed yet.

    • For full network visibility, BEST must be installed on at least one endpoint in each workgroup or domain in your network.  Ideally, BEST should be installed on at least one endpoint in each subnet

    • To detect endpoints in another domain, there must be a trust relationship between domains.

  3. On the endpoints that have not been detected, make sure the following conditions are met:

    • Network discovery is turned on.

    • Media streaming is enabled.

    • The following services are running: DNS Client, Function Discovery Provider Host, Function Discovery Resource Publication, HomeGroup Provider (for Windows 7), SSDP Discovery, and UPnP Device Host.

If the steps above do not resolve the issue, contact Bitdefender Enterprise Support for assistance.

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