Why disable WIFI on P5B Deluxe WIFI when OC'ing ?

[Defenestration]

I've read several reviews/posts from people using the P5B Deluxe WIFI to OC, and most of them end up disabling the WIFI. Why is this ?

 

[WJA96]

Anything that uses system bus resources could throw out your overclock. Some PCi and PCIe devices are more tolerant of overclocking than others, it's highly likely that the WiFi isn't very good at enduring a high bus speed somewhere and so causes overclocks to fail.