Gateway ????
First a First a little basic Tech. Education.
Traditionally there use to be Modems to decipher the Internet feed from the DSL/Cable/POTS signal.
In order to use the signal with multiple Network devices an Entry Level Cable/DSL Router (and later Wireless Cable/DSL Router) was built on a consumer level.
DSL needs (and many still need) PPPOE authentication. Originally, it was done by software and did not work well.
As a result, it became apparent to the DSL provider that it is cheaper to give a combo DSL Modem + Router in the same plastic box and do the PPPOE authentication by hardware in the WAN port of the Router (The software PPPOE generated Support Calls that was far more costly than the plastic Gateway boxes).
The FIOS and U-verse Boxes have additional functionality concerning the VOIP aspect of the service but as far as the Wireless Router aspects they are still in "Dark Ages".
The Wireless part of all of these combos is bellow average usually suffice for one or two computers that are in the same room with the Router.
What to do?
If the combo gateway allow disabling the Router part it is the best to disable it and use a real good Wireless Cable/DSL Router that gets its feed through the WAN port of the None Routing Gateway.
Otherwise, if the Router part of the gateway cannot be taken out of the picture the user should buy a good Wireless cable/DSL router and use it as a
Switch with an Access Point.
Configuration like this.
Using a Wireless Router as a switch with an Access Point -
http://www.ezlan.net/router_AP.html
The most reasonable sub $100 Wireless Cable/DSL Router is currently this.
High Power RF, a/b/g/n, Giga switch, simple USB for External HD as a storage server, and a user choice to install propriety firmware or DD-WRT.
http://www.newegg.com/Product/Produc...82E16833162047