After upgrading to VRM 8.7 i get the following error. It was fine yesterday but for some reason today i cant access it through vcenter. I have no connection issues and i can access it via the URL with no problem. I am on vsphere 8.0.1.
Try and re-register it to vCenter from the admin portal of the VRA and see what happens
I was able to figure it out. I changed the FQDN so i had to reissue the certificate.