I've started experiencing multiplayer and nat issues ever since i changed out my gateway. My original netgear adsl router gave me no problems for the past 3 months since i got the netduma however when I replaced the netgear with my old huawei adsl router I started getting double NAT. Tried to rectify this by changing dmz settings etc. Did not work called huawei support only for them to tell me my router is not compatible with double ds. Put back my old netgear router and nat opened up for about 2 to 3 hours. Then I started getting teredo ip problems. I have tried enabling upnp on the netduma as well as wifi workaround to no avail. Need help as this is really frustrating as the only way i can play online with friends is if i connect directly to my adsl router which renders the netduma useless and a very expensive ornament. Please help