Wider-spider is right, this is getting ridiculous. What‘s happening in Cupertino? These days, laptops without connectivity are pretty useless, not matter how sophisticated the hardware and OS. I’m having to fall back on an older MacBook with Catalina, as my fully speced-out and very expensive MB pro 13“ is stuck in laptop-quarantine by Big Sur. Why is there still no fix to this absolutely crucial problem? I have tried all the suggestions for fixes found in various forums : restarts, resets, configs. No level of resets has had any effect, while some manual configs (DNS entries, etc) work temporarily, allowing to connect to some wifis, but not to personal hotspots, nor do handoffs with my other devices work. Invariably, whenever I restart the computer, it can‘t re-connect to any networks. Even if it‘s true, as suggested by some, that uninstalling VPN apps and disabling firewalls solves the issues, it is no reason for Apple to sit on their hands. Personally, I absolutely rely on VPN services, and so do many other people. Come on Apple, your testing team has missed the issue, but please do something about it now! And, by the way, my MBP has also become very noticeably slower and laggy since installing Big Sur. The fan is spinning up and on full revs under, frankly, medium loads now... Not great for a pro machine, less than a year old.