Connectivity Issue

[stuart]

Hi Doug,

Hoping you can help me. I’m having issues connecting to a couple my systems on my network. When trying to execute any commands from the GUI i get “The RPC server is unavailable (Exception from HRESULT 0x800706BA). Batch is configured and functional for the other two systems have been testing with but I cannot get it to work for these two systems.

Have confirmed the following:

– Firewall is completely disabled on both source and destination.

– RPC service is started and active.

– I am able to communicate bidirectionally on 135 and 445.

Telnet access on the required ports can be a bit slow due to the environment i am operating ion but a connection does get established so not sure if there’s a chance it’s timing out.

Are there any other ports that need to be open? Anything else you can think of that i’m missing? I read mention of WMI ports somewhere but i haven’t had to configure this for the other systems.

Thanks in advance.

[doug]

Hi Stuart – It sounds like you’ve got everything configured the way that it needs to be. If the firewall is disabled on the destination computer and the RPC service is started, then there is no (logical) reason for you to receive “RPC server is unavailable.” So, you may be correct that there is a timeout issue. Or perhaps there is some type of other issue such as the one described here: https://support.microsoft.com/kb/935677

I wish I had another suggestion, but unfortunately it really does sound like you have everything configured properly, so I’m not sure what else to make of it. You might consider checking in the target computer’s event log to see if there are any indications of what might be happening or if a connection is ever being attempted. Another thing you could try is to run a packet capture utility like Wireshark on the target system to see if you see the connection attempt.

-Doug

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