I have tried firmware 3 and now on 4.2.1. My friend has the same router, similar specced computer, connecting to the same surfshark wireguard server in Thailand, same firmware, same config, he gets 400mbs download, I get less about 80mbs. My phone, laptop, and PC all connect with the surfshark app using the same DNS and download at over 400mbs. I tried changing the MTU, made no difference. Do I have a bad router?