[quote name='SonicChrono']Are you sure that this access point from the URL you gave me would fix the lag and random disconnection right after I get through the instructions, configure the settings, and activating AP Client Mode?[/QUOTE]
I can't promise anything, as your network could be the culprit, but it should outperform bridging via your laptop. It isn't as fast as my wired 360, and our network sometimes gets a bit hairy. For reference I have a laptop, a Wii, 2 netbooks, a desktop PC, and 2 360s connected wirelessly (one using this Access Point) and a PC and 360 connected via wires into a lower level linksys G+ router, sharing 12 mbps from a cable modem.
I have switched the Trendnet AP with the others I use (for the other 360 and the desktop and laptop) and there is no appreciable difference. Again, YMMV, but you can't really do better new unless you can get the $5 wireless 'N' adapter at Goodwill.