I was up and running on 1.12b5 for a few days and thought all was well, then hit massive amounts of latency/packetloss while in a game (wc3) this last Sunday night (same old issue I'd been having with 1.11), had to cold restart the router to correct. I have reset to factory and rebuilt the config (Wireless status bug is also still present), I have also tried various config settings (disabling wish, disabling QOS, etc) to try and unload the device. My home has a single pc, so priorities don't net anything other than slightly increased processing lag (not really noticeable but still not needed) though I have tried both enabled and disabled qos.
little background:
I had a lot of issues using the dwa-160 usb adapter. Seemed like bus throughput issues as I would get momentary drops (2-4 full sec) in layer 3, but the OS didn't report signal loss. I replaced this with the pcie card, dwa-556. I no longer had drops, online gameplay was smooth again. However the signal reception was significantly lower (not to mention the 556 adapter did not support 5ghz). After playing around with antenna position, router position I found and subsequently upgraded from 1.01 to 1.11 hoping it would improve my signaling issues. It did not, and I encountered all the problems people have noted with 1.11. I had tried various drivers, including the most up to date Atheros (non dlink) drivers for my 556 and nothing worked. However, reinstalling my os to a fresh copy of win7 increased my noise margins by nearly double, and I am now fairly satisfied with my wireless signal, even though the broadcom g chipset on my laptop gets a full -98db sitting on the desk next to my desktop. All I would like is stable throughput.
local network:
Router: dir-825
NIC: dwa-556
Inet provider: brighthouse/roadrunner turbo 20Mbit/2Mbit
wireless config: N and G only, 2.4ghz only on chan 1 and 5 (40hz bandwidth), all other wireless AP's in area are on chan 6. PC is about 30ft from AP, and separated by 1 interior wall.
OS: win7 build 7100