Bad request

Do you have directv stream or directv satellite service? What device are you using to log onto your directv account? Have you tried a different browser, device, etc? Also, ensure that ad-blockers, VPNs, and other antivirus software is turned off when accessing the directv site.

No, but I use computer and Mobil devices with a Canadian IP, it’s probably why I can’t long in. But I don’t know the solutions.

The service is only supported in the USA. Why are you using a Canadian IP?

I try to use an American IP, via expresVPN using a server in Miami. It’s don’t work. 

DirecTV generally won't work via a VPN. 

Using a VPN is blocked if they can detect it. A VPN is generally used to try to bypass location limitations and that very well may violate their content licenses with the networks, so they don't allow it.

Thank you for the information