BLZBNTBGS80000011 error no matter what I try

The Battle.net client refuses to let me login and keeps throwing up a BLZBNTBGS80000011 error.

I have Turned off all windows firewalls things.
Rebooted machine.
Uninstalled battle . net and ran a reg cleaner before installing again.
Reboot my router.
Release my IP and do a DNS flush.
Deleted all traces of Battle . net folders within ProgramData before reinstalling
I have no AV other then whats built into W11 and nothing works.

If I install Battle . net on my garbo laptop and run it there I have no problems. But my gaming PC? Nothing. this has persisted for at least a month if not more.

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