I don't have Cisco AnyConnect but still have the issue. Are you suggesting any VPN app might be the issue? Why would the VPN affect Intel Macs but not Apple chips?

Update. This worked until I rebooted my machine. Once I rebooted it reverted to the original error.

lol, not sure how/why but this tip actually worked for me... 🤷🏼‍♂️

I tried this and it did not work.