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One of my CV client backups started failing.  When I checked the ports from the CS\MA port 8401 is refusing to connect.  On the client side is exhibiting the same problem with port 8401 communication failure.  I was informed by one of my teammates that a certificate issue on the client side can cause this type of behavior.  If this is true, how can I resolve this and is there a document that would explain a certificate issue?

 

Thanks. 

Definitely possible.  If you run Check Readiness against the client, what’s the result?

Here’s an overview of the Check Readiness report:

https://documentation.commvault.com/11.25/expert/39708_check_readiness_report_overview.html

You can also try to renew the client certiifcate which, if that’s the issue, will help:

https://documentation.commvault.com/11.25/expert/7521_renewing_revoked_certificates.html

8401 is used for the GUI console. 

8400 is CVD and 8403 is CVFWD which are the default ports in v11.

https://documentation.commvault.com/11.26/expert/8572_tcp_ports_used_for_services.html

If you are having a certificate issue, you’ll see related errors in CVD.log on the client.

The client certificate status is revoked.  I have not renewed it yet but I will update you on the status after I do.  Thank you all for your feedback. 

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