Can't connect to appstoreconnect.apple.com

While on the login page, i'm entering my apple-id. The loading spinner stops spinning for 5-10 seconds, and then the "Can't verify your identity" message appears. However, I can still connect to developers apple com and any other services, except this one. I've opened the Javascript console, and there are endless repeating messages like this:

SecurityError: Blocked a frame with origin "appstoreconnect.apple.com" from accessing a cross-origin frame. Protocols, domains, and ports must match.

Any ideas on how to fix this?

I have the same issue. Tried with 3 different devices and even from iPhone app and couldn't succeed

Can't connect to appstoreconnect.apple.com
 
 
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