@David-TP Hi David. Thank's for answer. My device is MacBook Pro (16 inch, 2019) with macOS Catalina 10.15.7. I don't have any parental controls but I have a free Avast Secure Control. Some services...

I'm otherwise very happy with my device, but the big problem is that none of Microsoft's online services work. For example, the microsoft.com site does not open in any browser (Safari, Chrome). When...