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    Over the past few months some of my SCCM end users have begun to experience random RPC errors and general slowness through the SCCM Console. See image below.

    I am trying to determine what is the root cause but have been unsuccessful. I have looked in several msAdminUI logs, but that data in it was not very helpful. The text from the screen is just repeated. I also used the error lookup in CMTRACE to lookup 0x800706BA, but all was returned was "The RPC server is unavailable.". I have not been able to trigger or reproduce the issue myself. It just seems to periodically happen to some of my customers. Does anyone have any thoughts  regarding what would cause random errors like this occur or any additional tips on best approaches to troubleshoot the situation?

    Could not having the correct antivirus exceptions be a possible cause of this behavior?

    -Tony





    Monday, May 4, 2015 9:50 PM

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    You could try checking network connectivity, testing with WireShark or Netmon or some other networking tool. You may need to get your networking teams involved if you have one.

    Daniel Ratliff | http://www.PotentEngineer.com | @PotentEngineer

    • Proposed as answer by Joyce L Tuesday, May 19, 2015 9:50 AM
    • Marked as answer by Joyce L Friday, May 22, 2015 1:32 AM
    Friday, May 15, 2015 1:38 AM

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    The console connects to the SMS Provider through WMI. Getting a RPC error means something is happening between the console and the SMS provider that is preventing the connection. 

    AV could be a possible cause, as could network drops, or an issue on the server running your SMS provider. 

    Could you try to recreate the issue on the site hosting the SMS provider itself? That would eliminate alot of remote issues. 

    Daniel Ratliff | http://www.PotentEngineer.com | @PotentEngineer

    Monday, May 4, 2015 10:36 PM
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    Concur with Daniel. This is indicative of "something" on the network (and thus outside the control of ConfigMgr) disrupting the connection. This something can be many different things though like those mentioned by Daniel or firewalls, network inspection, etc.

    Jason | http://blog.configmgrftw.com | @jasonsandys

    Tuesday, May 5, 2015 2:40 PM
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    Daniel / Jason

    According this this article, under Configuration Mananger Console --> Site Server 

    RPC has to be open to the site server on port 135, I can run a telnet command to my site server to verify that the port is open.

    Under Configuration Mananger Console --> SMS Provider,  RPC port 135 has to be open and the RPC Dynamic ports.  Is running a telnet command with a few dynamic ports  to the SCCM site server still a good test to see if the path is open to the SMS provider? Or is running telnet to the site server not actually talking to the SMS provider?

    -Tony

    Wednesday, May 6, 2015 10:53 PM
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    I am not sure if that's a good test or not, but the real test is still to open the console on the Site Server and see if it connects.

    Daniel Ratliff | http://www.PotentEngineer.com | @PotentEngineer

    Thursday, May 7, 2015 12:58 PM
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    The console on the site server opens.  -Tony
    Thursday, May 7, 2015 6:41 PM
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    Yep, as mentioned, something outside of ConfigMgr. If the firewall doesn't allow the traffic, not much will work.

    Jason | http://blog.configmgrftw.com | @jasonsandys

    Thursday, May 7, 2015 10:51 PM
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    The odd thing is is not something that seems to happen all of the time very randomly, people may experience it 2 or twice a month. I made sure all of the SCEC exclusions are in place, have maintenance running on DB to make sure it is not fragmented, and I have verified that the dynamic RPC ports are open on the box and on the network. The only thing I can think of right now is some random network latency.  Any other suggestions? Things have been quiet on this front the past two weeks, maybe things worked themselves out, but I don't think I'll get that lucky. :-)

    -Tony



    Friday, May 15, 2015 12:43 AM
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    You could try checking network connectivity, testing with WireShark or Netmon or some other networking tool. You may need to get your networking teams involved if you have one.

    Daniel Ratliff | http://www.PotentEngineer.com | @PotentEngineer

    • Proposed as answer by Joyce L Tuesday, May 19, 2015 9:50 AM
    • Marked as answer by Joyce L Friday, May 22, 2015 1:32 AM
    Friday, May 15, 2015 1:38 AM