The VPN filter checks the incoming connections over the VPN tunnel. Client firewall option is mostly used when you have Local Lan Access applied , so that with Lan access enabled , you can filter the traffic (e.g allowing access to only printers in local lan). Hope this helps. Regards, Dinesh Moudgil P.S. Please rate helpful posts.

How to disable VPN block on Windows Firewall 6 Check for your VPN from the list of programs and apps you want to allow through your firewall. 7 Check Public or Private to select the network type on which you want the VPN to run. 8 If you cannot find your VPN, click Allow another app. 9. Select your VPN and then click Add, then click OK How to Setup VPN using PPTP on Windows Server 2019 - Get May 03, 2020 Windows Firewall blocks PPTP VPN

Note: VPN Server does not support bridge mode for site-to-site connections. Please check the port forwarding and firewall settings on your Synology NAS and router to make sure the UDP port 1194 is … How to Configure GlobalProtect VPN on Palo Alto Firewall Nov 13, 2019

What ports are used by your VPN service? - Knowledgebase

Network firewall or web security gateway. If your app stays in a "connecting" mode or timed out due to "Network error, please try again" or "Can't connect to our service, please check your network connection and try again" - it could be related to your network connection, network firewall settings or web security gateway settings.