For my dashboard, I use Google to login - I don’t have a separate account with password. When I try to the dashboard through Google, I get “502 Bad Gateway”. I have tried on two separate laptops and my phone. I can login to this forum through Google fine, however.
Some other people is reporting errors too:
I would wait till an official explanation from AirGradient, but they seem to have some issues.
Could you please try again now? The issues should be resolved and you should be able to log in again.