This probably won't help you, but I thought I would pass it along just in case. When you put your new cert in place, did you put all the intermediate certs in place as well?
Also, when requesting the cert did you put in all the required fields in the request? When I replaced my QRadar generated cert, the new cert failed and support told me you had to put in all the fields for a multi-domain cert in the request for it to work. Support has a cert request template that has all the required fields. A quick test is to check in the GUI when you connect to QRadar using your new cert and see if the cert is good or not by looking at the lock emblem. If the cert is trusted by your browser than it might be OK.
Also, did you do a full deploy after replacing the cert? I have found that clears up things like this sometimes, but it has to be a FULL deploy.
Daniel Sichel, Security Engineer, CISSP #422810
Community Medical Centers
Compliance Office – Information Systems Security
1540 E. Shaw, Suite 101, Fresno CA. 93710
Phone: (559) 724-4265 ext. 24265 | Fax: 559-724-4271
Cell: (559) 230-9444
dsichel@communitymedical.org
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