Postman Snap Looks like there's no internet connection

Hi, I am on Linux Mint 19.3. I installed snap and I installed the postman snap. Postman starts but doesn’t seem to think there is an internet connection. There is an internet connection - that is how I am typing this message. I am on my home network - no proxy… I’ve googled but it seems these problems are related to proxies which I don’t have so I am at a bit of a loss what to do. Is there something I need to do with the snap to give it internet connection?