Wifi does not recognise captive portal after upgrade to Catalina

There are Mac viruses out there. https://www.macworld.co.uk/feature/mac-software/mac-viruses-list-3668354/

You are somewhat naive if you believe Macs to be invulnerable. Whether AV software is an effective solution to the problem is questionable. Certainly Avast shared many of the characteristics of malware.

Unfortunately, as long as lists exist like the one I linked to, "there are no Mac viruses" is not a good answer to the people conducting the security audit.

That article that listed a number of Mac vulnerabilities and that proves the statement "The honest answer is there are no Mac virus' out in the wild that can attack your Mac" is hopelessly naive? That article?

It may be that all the ones listed are no longer a threat (and, yes, some of them never really were), but they do exist and some were real threats until they were blocked.

You also forget about the use case of accidentally passing Windows viruses on to customers. I work in an organisation where some people use Windows. If their PCs were infected and they gave an infected file to me to distribute to a customer, it wouldn't be too clever.

Turns out that this was not the problem. This is a general issue with Catalina

https://discussions.apple.com/thread/250721099?answerId=251461118022

Thanks for that. I'm not using Sophos, but I do have Avast which might be blocking things I suppose.

Anyway, I'll try some of the things on that list and report back.

Uninstall of Avast and reboot did it. No great loss because it was becoming a real intrusive pain, but now I need to find a new AV that works on Catalina.

Yes I do.

I need to be able to answer honestly "yes I do have AV on my Mac" when I'm asked for my company's ISO audit.