Hi,
I purchased the DWA-582 a couple of weeks ago.
It all worked fine first. Then after a few days it started with those hiccups/micro outtage where it just drops connection or sometomes has very high ping every two ping-packages.
I've isolated it to the PCIe Adapter. I've tried virtually everything possible.
I am positive that a windows update messed it all up.
I tried:
switching channels
getting closer to router
changing routers
RMA'd the card itself for the same model
deinstalled windows driver installed official one
different driver setting
please help or I'll jump the ship on your product
Edit: this is what it does
http://imgur.com/a/YkwEi