RPC server is unavailable after aggressive shutdown of the PI server

Discussion created by ragaboxy on Dec 26, 2019

Merry Christmas to all!


I have two OPC-PI HDA interfaces fetching data from two DeltaV DCS systems. The interfaces are on the same PI server machine.


Due to a UPS failure, the PI server lost power (but not the DCS systems) and after the PI server restart, I cannot get the OPC-PI HDA interfaces with DeltaV to start normally again. In the PI message logs I receive this error many times "OPC Error 800706BA The RPC server is unavailable" as per the attached screen shot.


I checked the windows event logs and found many errors related PI applications like CoreSight, etc... Here is a sample of them:


Log Name:      System

Source:        Microsoft-Windows-DistributedCOM

Date:          12/25/2019 10:01:44 AM

Event ID:      10016

Task Category: None

Level:         Error

Keywords:      Classic

User:          EGYPTIANLNG\PICoreSight

Computer:      IDKUPIMSPI02.EgyptianLNG.com


The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID




to the user EGYPTIANLNG\PICoreSight SID (S-1-5-21-1214440339-2077806209-725345543-15839) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool.

Event Xml:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">


    <Provider Name="Microsoft-Windows-DistributedCOM" Guid="{1B562E86-B7AA-4131-BADC-B6F3A001407E}" EventSourceName="DCOM" />

    <EventID Qualifiers="0">10016</EventID>






    <TimeCreated SystemTime="2019-12-25T08:01:44.936036200Z" />


    <Correlation />

    <Execution ProcessID="744" ThreadID="4664" />



    <Security UserID="S-1-5-21-1214440339-2077806209-725345543-15839" />



    <Data Name="param1">application-specific</Data>

    <Data Name="param2">Local</Data>

    <Data Name="param3">Activation</Data>

    <Data Name="param4">{D63B10C5-BB46-4990-A94F-E40B9D520160}</Data>

    <Data Name="param5">{9CA88EE3-ACB7-47C8-AFC4-AB702511C276}</Data>

    <Data Name="param6">EGYPTIANLNG</Data>

    <Data Name="param7">PICoreSight</Data>

    <Data Name="param8">S-1-5-21-1214440339-2077806209-725345543-15839</Data>

    <Data Name="param9">LocalHost (Using LRPC)</Data>

    <Data Name="param10">Unavailable</Data>

    <Data Name="param11">Unavailable</Data>






I already opened a technical support case with OSI but due to the holidays I am getting either delayed response or out-of-office replies. Please help!