The Network Load Balancing (NLB) cluster operates normally when all NLB components are compatible. If some components are incompatible, then you may run into issues managing and controlling the cluster.
Disable and enable NLB network adapters
If the Network Load Balancing (NLB) driver fails to register a device, such as a network adapter, the cluster will converge and operate normally, but controlling the cluster might not work properly. You should disable all network adapters with NLB bound on this host, and then re-enable the adapters.
To disable and re-enable all network adapters by using Network and Sharing Center:
Click Start, click Network, and then click Network and Sharing Center.
Under Tasks, click Manage network connections.
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.
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.