Are you still unable to download the driver for your machine?
Also what's puzzling is that I was playing a game against my cousin over my home network and there was a ton of network traffic. But at that time, I never heard the crackling sound - it's only now that I hear it.
Tried it just now and the multiple download method is working now. Will compare with the previous download to see if it's any different. I haven't tried the new one yet though. My "normal" machine has the Dell old card in it. I need to unpack and try it on the replacement machine.
As for gaming, I would say gaming doesn't produce massive amounts of traffic. Best I've found is either iperf or doing a simple file copy from machine to machine (assuming you have two machines including the 15z). And definitely more traffic equals more glitching.
I currently use channel 1 in the 2.4GHz space. Now they are telling me to try channel 11 on the replacement machine (still with the Intel 6230). I was mainly using 5GHz though since I get better speed there and can set it for 802.11n only
I have already done this for them long before the replacement machine arrived and also the problem was occuring at 5GHz too. So this will not help and we're going around in circles now.
Last edited by Shonky; 5th December 2011 at 05:40 AM.
I'm not sure if this will help, but I've been talking to a Dell liaison who has been in contact with their engineering department. He claims that engineering is "aware" of the problem, though I'm not sure what they plan to do about it. I plan on following up on this and I'll keep you posted. If anything, he can help get the wifi card replaced. This is his page on Dell Forum:
I just tested a different 15z to see if it also had latency problems. To generate network traffic, I streamed same YouTube video I've been using to test and the computer, in fact, had pretty bad latency problems. On average, the computer had about 4000µs of latency while the video loaded. However, the person said that she never hears that crackling sound.
At this point, I'm convinced that you're correct - this is a design flaw of the 15z...
Did you hear the crackling/glitching during your test?
I definitely think a lot of people wouldn't notice it. I certainly wasn't looking for it. It took me a while to figure out what was happening. It was just I was copying a lot of files to the new machine whilst playing some MP3s...