If you are running avast vpn standalone version, you'll need to click 'Change Location and select a P2P server. Will work for the vpn feature included in Premier and AIS also.
There are 3 P2P worldwide, 1 in the UK, and 3 in United States. Should work for you.
Be aware the vpn included in Avast Internet Security and Premier will have support ending for it sometime in the future, so installing the standalone version, after removing the included vpn version in the suite, may be the best way to go. As always, reboot after making changes for either.