They only support *one* DDNS provider?! LOL, amazing. And DynDNS hasn't even been providing free accounts for quite some time. You could setup a free trial (14 days) at DynDNS. If you cancel before the 14 days, they won't charge you, but you'll be allowed to keep one free hostname. You might also try updating the router's firmware. Netgear may have added other DDNS providers since your current firmware was released. Otherwise, the only other alternative would be dd-wrt (third party firmware). dd-wrt supports many DDNS providers. Check their database to see if your router is supported.