Ranger802004
Very Senior Member
No, leave your WAN MTU at what it is suppose to be, your VPN MTU needs to be set to whatever the maximum transmission can be + overhead packet bytes to fit within the WAN MTU otherwise you will get packet fragmentation and that degrades the quality of your link severely.I'm using a Wireguard config from my VPN provider. I notice doing ping tests that it sets the MTU at 1420 for the WG connection.
Is there any advantage to setting the MTU on the modem and/or the router WAN to 1392?
RT-AX86U