Cannot connect to any meetings

Hey team zoom.  For some reason I cannot connect to any meetings - when clicking into a meeting (or even a test session on the website), it opens the app, then times out with a message of "cannot connect, please ensure proxy, no firewall, etc".  

Network is plenty fast, no VPNs running.  Am on a Macbook Air running Sonoma (but wouldn't work on previous OS either).  

Thanks in advance.