How to Block Unauthorized VPNs | PCMag

My kids are bypassing Netgear Live Parental Controls by Dec 18, 2017 Modem blocking VPN device | AT&T Community Forums Jul 26, 2017

Fortunately, Circle is equipped with a VPN & Proxy filter category which blocks access to many common, popular VPN and proxy services. We strongly recommend using this to ensure that your Circle device is able to see your network activity properly. NOTE: VPN & Proxy services are constantly changing.

ISPs can search for and block the IP addresses known to belong to a certain VPN company. The other method is to disable connection ports that are mostly associated with VPN traffic. The internet works through communication ports between two end points, and so ISPs, governments, and other system administrators can block the ones that would be

What is the best way to block VPN? - Quora

How to Bypass VPN Blocks: Guide to Unblocking Your Activity Jun 10, 2019 What is the best way to block VPN? - Quora Jan 29, 2019 What to do if your VPN is blocked? | Tips & tricks for Jan 14, 2019