Another vote for using a separate modem. Also that way if you need to reboot your router, there's no potential DLM issues.
If the router you have currently is gigabit capable then I wouldn't be so fast to replace it, you'd be much better off running a separate wireless access point such as a Ubiquiti AC pro and turning wireless off on the router. Change the APs default gateway to the routers IP address and you should be good to go. Absolutely amazing AP.
If the router you have currently is gigabit capable then I wouldn't be so fast to replace it, you'd be much better off running a separate wireless access point such as a Ubiquiti AC pro and turning wireless off on the router. Change the APs default gateway to the routers IP address and you should be good to go. Absolutely amazing AP.