About 8 months ago, I purchased a new PC for myself with this card. To my dismay, it has latency issues when I connect to my home network via 802.11ac, but no such problems occur on my 802.11n network on 2.4GHz. In addtion, in order to rule out default windows driver as issue source I tried installing the drivers in DLinks website, however when I install the OFFICIAL drivers for this card, the problems become much worse with windows outright resetting the adapter when connecting to the 5GHz network, and again no problems with 2.4GHz. Using Windows 10 x64 with the problems persisting in versions 1703, 1709 and 1803.