Once, I was talking to a client on the phone, and trying to access his site on my laptop which is on the wireless LAN. I told him I'd call him back once I figured out what was wrong with the site (my first impression was that the server was having a problem). Magically, of course, once off the call the site came back up. I called him to mention it was fixed, and noticed that it was down again, and quickly figured out that I just couldn't get out on the net over WiFi while talking on the cordless phone. This was a 2.4ghz phone with the base station for the phone right next to the laptop. I move away from the base station (while still on the phone) and everything worked.

Okay, here's the deal

Both 802.11b and 802.11g run on 2.4ghz. So, in short, no - changing to g would theoretically NOT help the issue.

However, 802.11a, yet another standard, runs on 5.8ghz, at 54mb/s (same faster speed as 11g). I've heard that because it's using a shorter wavelength, 11a also has the potential to penetrate building walls more easily, but I could be wrong about that. I also know that this standard is MUCH less common, has more expensive hardware, and is usually only practical for small businesses.

I can say from experience that I once had my 5.8ghz wireless phone crap out on me when doing a large transfer using 11b (2.4ghz), which doesn't make much sense since they're different frequencies. There might have been something else involved, but I didn't know about it at the time. Anyways, these things can just be weird sometimes.

If you still need more advice, check out the forums over at www.netstumbler.org - there are some REALLY intelligible people on this subject over there.

Hope this helps.