Hi Technet,
We currently have a 4 node Windows 2008 R2 NLB with multiple NICs in each and every so often everything stops working. The issues we have seen are listed below
- The NLB manager is unable to connect to all of the server (RPC Server unavailable)
- The below error in the event log on all 4 servers at the same time
This computer was not able to set up a secure session with a domain controller in domain due to the following:
The RPC server is unavailable.
This may lead to authentication problems. Make sure that this computer is connected to the network. If the problem persists, please contact your domain administrator.
ADDITIONAL INFO
If this computer is a domain controller for the specified domain, it sets up the secure session to the primary domain controller emulator in the specified domain. Otherwise, this computer sets up the secure session to any domain controller in the specified
domain.
- The boxes are unable to contact database servers
- Client calls fail to NLB with RPC Server unavailable
A reboot fixes the issue, but trying to restart the NLB with the following commands does not.
nlb.exe stop, .
nlb.exe reload
nlb.exe start
Any help would be greatly appreciated