Cisco ISE 2.2 EST Service not running issue

[jm.virtual01]

I have ISE 2.2 and Patch 9 installed on it now. I have two PSN nodes. On the first PSN 1, everything running fine but on the PSN 2, EST service showing not running. I have replaced the ISE CA root certificate but still it has the same issue.

Can anyone suggest any idea to resolve this issue?

[Surendra · Accepted solution]

You might be running into the defect CSCvi50320.

Please get it checked with TAC to get a fix if this is the issue. If not, they will help you to get to the bottom of this.