Teams + WhatsApp web

Hi

I wonder if anyone has an answer to my probs...I CAN NOT get teams to work, in my browser or app. It sends me round in circles. If I try to join meetings on browser it goes round in circles. If I try to join on the app it tells me I have issues with accounts and orgs.

We have tried to meet via WhatsApp web, it tells me to download app - which I have already done.

It's just so frustrating, I don't know what I'm doing wrong or indeed if I'm doing something wrong.

I have an inspiron 15 3000 btw