How to sign in when device say “unable to sign in because of a problem communicating with icloud.”...?

Turn OFF Low Power Mode. Ensure that you have a good solid working Wi-Fi connection. Then try again.

Axel F.

There is a problem on Apple’s end; from the Apple System Status page→Apple - Support - System Status

Image posted to cover when the status page updates:

Couldn’t work on my own

What happens when you try to sign in?

Are you using a VPN connection?

No

I’m not using vpn connection

It still won't sign in