I use Linksys Wireless-G Adapter, model number: WMP54G.
I get lag spikes every 10 seconds or so. My ping suddenly jumps from 2ms to 1900ms, then it gets back to normal. I did ALOT of research on internet, and found that possible problem is Windows service called Wireless Zero Configuration, and that lag spikes disappear with disabling WZC, and using utillity that came with adapter instead of windows utillity.
I tried doing that, but I still have the same problem. Lag spikes arent noticable while surfing through web browser, but playing FPS games like Counter-Strike, Call Of Duty, Battlefield is simply impossible, because it lags every 10 seconds or less, and it is simply annoying. Before I bought linksys adapter I used Asus adapter, and asus utillity which came with it, but had the same problem.
Any help is appreciated!