This is a 2013 server that was installed in a separate domain but never deployed beyond that. I need to uninstall, remove this machine from the domain, then we're going to deploy 2016 on a different domain. Uninstall fails because it says a mailbox still exists, but I have disabled that mailbox as per instructions and it still fails. But I have no options in the EAC except tools and the only options there are "checks", which only has a best practices analyzer.
I'm using explorer on the local server with a URL of https://<FQDN>/ecp and I don't get any errors on login, but I can't do anything. Did my best to search the forums but the closest I found was a recommendation to run install-rbacroles and install-rbacrole... something. Why can't I manage my server?