Originally Posted by
Abrahn
I guess the hospital WiFi has a login page on the one device that's working?
My bet is that the WiFi portal has been done on the cheap and they haven't paid and got themselves trusted by Google et al.
Easiest solution is to find a basic browser that doesn't check certificates, use that to login, and then carry on with your favourite modern browser.
Be aware that in that situation, any traffic between your device and the access point could be read and potentially copied or modified. It sounds as though the hospital system is either not using TLS/HTTPs, or is doing so with an untrusted certificate. Without knowing more personally, I'd turn wi-fi off, and use mobile data. Or use wi-fi but assume everything that goes over it could be read by 3rd parties.