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Event ID 98 — Network Adapter Functionality

Updated: November 13, 2007

Applies To: Windows Server 2008

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The network adapter to which Network Load Balancing (NLB) is bound must be properly configured and capable of performing NLB operations. If the adapter is not properly configured, the NLB driver may fail to bind to the adapter.

Event Details

Product: Windows Operating System
ID: 98
Source: Microsoft-Windows-NLB
Version: 6.0
Symbolic Name: MSG_ERROR_ATTACH_FAIL
Message: NLB cluster [%2]: The NLB driver failed to attach to adapter '%3' due to error %5. As a result, this host will not be an active member of the cluster. Using Control Panel or Device Manager, disable and re-enable the network adapter before attempting to bind NLB to the adapter.

Resolve

Disable and re-enable NLB network adapters

When the Network Load Balancing (NLB) driver fails to attach to the network adapter or fails to register with the Network Driver Interface Specification (NDIS), the host will not be an active member of the NLB cluster. You should disable and re-enable the network adapter before attempting to bind NLB to the adapter again.

Membership in the local Administrators group, or equivalent, is the minimum required to complete this procedure.

To disable and re-enable all network adapters:

  1. Open Network and Sharing Center, and then click Manage network connections.
  2. Right-click the network adapter you want to disable, and click Disable. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
  3. Right-click the network adapter you want to enable, and click Enable. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

Verify

When you are using nlb.exe, you must be a member of the Administrators group on the host that you are configuring, or you must have been delegated the appropriate authority. If you are configuring a cluster or host by running nlb.exe from a computer that is not part of the cluster, you do not have to be a member of the Administrators group on that computer.

To verify that the network adapters are properly configured:

  1. Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. Type nlb.exe query, which displays the current cluster state and the list of host priorities for the current members of the cluster.
  3. Type nlb.exe display, which displays details on the current cluster configuration and the IP configuration on the host operating system and the network adapter. Verify the configuration of the network adapter.

 

Related Management Information

Network Adapter Functionality

NLB Cluster

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