Do you use a VPN?
https://faqs.ankiweb.net/anki-must-be-able-to-connect-to-a-local-port.html
see also: [Bug][Qt6] Waitress Error Messages
Do you use a VPN?
https://faqs.ankiweb.net/anki-must-be-able-to-connect-to-a-local-port.html
see also: [Bug][Qt6] Waitress Error Messages