I have been using my Series 3 Cellular with Rogers for years.I finally discovered the problem, it's with the JavaScript code on the form.If you autofill the e-mail and password from a password manager, it doesn't seem to accept the password. It appea...
I am having the same issues on my Series 3 (paired with an iPhone 8). I was getting an error that the Carrier update could not be installed. I had wiped the watch, keeping the cellular and it gave me the same issue. So I wiped it and started as "new"...