I use a VPN that utilizes WireGuard protocol, which has maximum MTU size of 1420. To make sure, I tested that with "ping www.google.com -f -l" commands. 1392 was the highest MTU that did not require fragmentation. If you add 28 to that like you're supposed to, you get WireGuard's MTU of 1420. I used NetSH commands to set my LAN to use MTU of 1420. The problem is that setting MTU of 1420 in my router results in me not being able to visit websites. Other devices work fine 1420 is set to MTU in router, but my PC doesn't... What I want to do know is whether Windows MTU settings override router MTU settings and whether either of them matter, given how VPN always shows MTU of 1500 at the end of the tunnel.