You mentioned "Ethernet bridge through wiring", which I assume is a powerline network. What problems did you have with this? Maybe it was just a poor quality adapter kit. Unless you are having some kind of issue with signal quality through the actual electrical wiring in your home, I would recommend giving this another shot. Either that or pay to have ethernet wiring run down to the basement. The distance and obstacles will greatly reduce your chances of having a good Wifi experience, especially with an XBox and Slingbox attached.
Take a look at the powerline adapters from Linksys and Netgear. Around US$150 for either system, but probably worth it in your case.
I have a Verizon FIOS setup in my home on the second floor of my house. I have an xbox and a slingbox in my basement. I do not have an Ethernet setup in the basement. I have tried the Ethernet bridge through the wiring to no avail. I would like to get internet access to my xbox and slingbox at a high rate of speed wirelessly. How do I do this? I am completely willing to buy hardware for this, but I'm not willing to spend the money to have the wires run through the house. Microcenter recommeneded a D-Link N Dual Band Router, but I'm seeing bad reviews on this. I also need to know what to hook the peripherals into. I'm a noob...please help.

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