

There is far more to the situation than this, but it is a summarized version of the events that have taken place over the months.
#Intel centrino wireless n wimax 6150 vs n 1000 install
Since this point, it has been a community recommendation to install the Qualcomm Atheros drivers rather than using the outdated Dell OEM driver which is dated May 2011 for the Ethernet card in the XPS 15z. This driver was tested by several community members and it was found that latency spikes were reduced heavily. It was eventually discovered that the Atheros Ethernet Adapter could be attributed to the problem, after a newer Non Dell OEM driver was found for the Atheros 815X Family Ethernet Controller on a third party website. A lot of community activity was involved in trying to get to the bottom of this problem. There are many areas which have been highlighted including Windows 7 and its lack of process interruption protection, Intel WiFi Drivers, Realtek Sound Drivers and other areas. The latency spikes are caused by unknown factors which have never been truly pin pointed to any certain area (and still haven't to this day). The original problem described in this thread is regarding latency spikes over WiFi on the XPS 15z.

This thread has expanded massively overtime, so the information in its entirety might be difficult to take in without knowing all the facts. If you haven't followed this thread through various developments since it was first published, take a second to read this summary.
