I have 3 servers. One is a 2012R2 server, one is a 2016 server, and one is a 2019 server. The 2016 server is our monitoring server, PRTG. I'm trying to get performance counters from the 2012R2 server and the 2019 server in PRTG. I can get all performance counters from the 2019 server but not the 2012R2 server. Both 2012R2 and 2019 are in the same domain. I know it's not a PRTG issue, because if I open PerfMon on 2016, I can connect to Performance counters on 2019, but I can't connect PerfMon to 2012R2 at all. Ports are open in the firewall and the Performance services are fine. I ruled out user account by using a local admin account in one test, and a domain admin account in another test.
Any ideas for what else I can check to see why I can pull all sorts of WMI information, but NOT performance counter related data?