BP v7.0.1 upgrade and callback channel error

[HongJooChoi]

Hi, Community.

Can anyone guide us regarding the following error message?

We have upgraded the BP from 6.8.1 to 7.0.1 and ASCR setting remained as default with its port = 10000, hostname = localhost, callback = gRPC.

We changed the port number to 20000 for try and fortunately, the server started successfully at the moment.


Since then, we have tested the RR by drag-n-drop the process from the control room, when we came across the following error:


Would there be any way to troubleshoot this?


Best regards




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HongJoo Choi
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[steven.boggs]

Hello,

We have a Knowledge Base article that describes this error with some troubleshooting steps to try; "Why do I get error message "Unable to establish communication with server callback channel." when trying to run a process after upgrading to Blue Prism 7?"

Have you reviewed this and implemented the suggestions? If so, what were the results?

Hope this helps.

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Steve Boggs
Senior Product Support Engineer
Blue Prism
Austin, TX
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[Tejaskumar_Darji]

This article page is not loading

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Tejaskumar Darji - https://www.linkedin.com/in/tejaskumardarji/
Technical Lead
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[kgupta]

I have the same issue, page is not loading and getting the error - 

Unable to establish communication with server callback channel. This will prevent certain features from functioning properly. If this error persists, please consult the documentation: https://bpdocs.blueprism.com/bp-7-3/en-us/ascr/ascr.htm

[Michael_S]

Try this link instead:

https://support.blueprism.com/en/support/solutions/articles/7000076986-bpe-error-unable-to-establish-communication-with-server-callback-channel-when-trying-to-run-a-proc 

[kgupta]

Thanks, I was able to resolve this error by opening inbound port 10000 on the App Server.