I had this same exact issue with my wireless system and tried a couple of the aforementioned solutions. I went to my BIOS and turned off my "OC Genie" and set all pcie settings to Gen3 instead of auto. That seems to have fixed my problem for now. Thought I should report.
Specs as follows:
MSI Gaming 5 Z97
EVGA GTX 1080ti hybrid
i7-4790k
16GB DDR3 1600
SSD