Recently, many friends in their projects also began to apply the features of Microsoft TMG NLB, but after the configuration was completed found not installed TMG machine, Windows Server 2008 NLB function is normal to find the other node, But once enabled is TMG NLB then in the NLB management console you will find that NLB nodes are unable to discover each other's nodes and will report an RPC error, but the NLB feature is in effect, and today it is a simple introduction and sharing of the problem posting.
First, when NLB is enabled, it is possible to ping each other's nodes, which has been improved in Windows 2008, but because Windows NLB's manager calls Windows DCOM and TMG does not support DCOM, this results in This does not affect the normal function, you can not worry about this error.
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