Email Loading Loop

I'm stuck in the endless loop of connect.xfinity.com/appsuite. I've tried opening it in Microsoft Edge, a fresh install of Firefox, and on Chrome using my cell phone data. Same result every time.

I need to check my email to see the SIM carrier unlock PIN that was just sent by one of your support people, since I've ported all my phone numbers away from Xfinity to Ting.