I've got a SH3 that I'm using in modem mode connected to a dlink 878 router. I got a decent upgrade deal from vm to move from 200mb to 350mb. However, my speeds get nowhere near 300mb let alone 350 in modem mode. I'm getting around 200 max. If I remove the dlink and use the sh3 as a router I hit over 300mb (over Ethernet,) so the issue is with the dlink router restricting the speed. Has anyone got any suggestions as to what I can do to increase speed in modem mode?