Found it out through some various tech tear down sites
Also I think I fixed the problem, and its the dumbest damn thing possible, I'm testing now.
*EDIT* Testing done.
So yeah, you want to know how to restore your device back to full speed? This is going to make you laugh.
You need to
A) Enable Cortana
B) Enable Action center
C) Turn on "Location" in Cortana
D) Turn off "Location" In Action Center
And now the DWA-192 is performing flawlessly
The only reason I found this out was through an obscure, and I mean massively obscure post during the Windows 10 tests where some guy having wifi problems like me traced it down to Cortana and Action center with the Location setting enabled which bombs out your wifi
This is, quite frankly the dumbest windows setting I've ever seen affect a hardware setting in my life, and now my device works flawlessly
So yeah, you might want to get D-Link to get in on this, and report it to microsoft