Hub mesh not working correctly

I have two hubs here, one C8 and one C8Pro.
They are on the exact same subnet, can ping each other and on a trace route, they show direct connection.
Both hubs have hub security enabled.

The C8Pro hub is connected to the C8, and shows no abnormaliry's in the hub mesh screen.
The C8 hub is not connected to the C8Pro, and shows the hub mesh token is invalid.

No matter what I do, I cannot seem to get the C8 connecte to the C8Pro.
What I tried:

  • Reboot both hubs
  • Re-enter the C8Pro's mesh token on the C8
  • Regenerate the C8Pro's token and enter it in the C8

So for some reashon the C8 will not accept a connection to the C8Pro.
When I trie to share a device from the C8Pro to the C8, the device will not show up in the C8.

What could this be?

Did this happen organically or did a change occour that triggered it?

The only time I saw invalid token was after upgrading my old c8 to the c8pro. I had to regenerate the token on one of my existing hubs to get it to reconnect. But it did eventually fix itself after that.

The C8Pro is brand spanking new, the C8 is used, but had a soft reset.