I wish I knew how. Seems too confusing for me - the guy who has to listen to popping audio throughout everything I watch. Does your 360 have to be turned on for the bridge to work, or does that not matter?
The problem is, my router is on the desktop computer in a different room than the Big screen with the 360, PS3 and Netflix box. So, I don't understand how you would bridge the Wifi connection from one of the game systems to the Netflix box. If you read an article specifically explaining how to do this, please pass it along.
I have no problems with video quality anymore, all my problems are audio related because Roku will not patch the box and fix the issue.
Check out this Amazon page
for an example of an wireless bridge. Its basically a receiver with ethernet ports that gets the wireless signal and distributes it to any wired ethernet devices you have near it (game boxes, Roku Netflix Box, etc.) Some people have success with these because the reception with the 7 db gain antennas is better than what the stand alone devices have.
The other thing that sometimes works is the HomePlug style devices
that use your home's electrical wiring to pass the signal. It all depends on how "clean" your electrical wiring is, and if you have any halogen lights, etc plugged into that same circuit, etc. But some people swear by these things. Just plug one into a wall outlet near your router (not into a power strip!), run ethernet to it, and plug the other one into a wall outlet near your Roku Netflix box and run an ethernet cable from it to the box. If it works, you're golden ... but make sure both options you try are returnable if they don't work (one reason I like Amazon!)