I have 7 PVE servers and 1 PBS server all with valid license. PDM's license manager correctly shows that status however it shows "Too many remote nodes without active basic or higher subscription" when I try to access the enterprise repo for updates.

All the servers use the Community license. That allows me access to the enterprise repos in PBS and PVE.

There just seems to be contradictory messages in the UI

community sub is below basic, but still a valid sub, so all the messages are correct.
you have subs everywhere, just not on a high enough level to be eligible for enterprise support on PDM.