https://community.cisco.com/t5/network-access-control/cisco-ise-2-2-est-service-not-running-issue/m-p/3759809#M487377 You might be running into the defect CSCvi50320.<BR /><BR />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.<BR /> Fri, 07 Dec 2018 20:54:31 GMT Surendra 2018-12-07T20:54:31Z https://community.cisco.com/t5/network-access-control/cisco-ise-2-2-est-service-not-running-issue/m-p/3759779#M487376 <P>I have ISE 2.2 and Patch 9 installed on it now. I have two&nbsp;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.</P> <P>&nbsp;</P> <P>Can anyone suggest any idea to resolve this issue?</P> Fri, 07 Dec 2018 20:07:52 GMT https://community.cisco.com/t5/network-access-control/cisco-ise-2-2-est-service-not-running-issue/m-p/3759779#M487376 jm.virtual01 2018-12-07T20:07:52Z https://community.cisco.com/t5/network-access-control/cisco-ise-2-2-est-service-not-running-issue/m-p/3759809#M487377 You might be running into the defect CSCvi50320.<BR /><BR />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.<BR /> Fri, 07 Dec 2018 20:54:31 GMT https://community.cisco.com/t5/network-access-control/cisco-ise-2-2-est-service-not-running-issue/m-p/3759809#M487377 Surendra 2018-12-07T20:54:31Z