I put my 657 back online last nite after it not being online for a while. I'm using single mode N, WPA2/AES only, HT20/40 Co-existence and Short GI disabled. Auto Channel Scan and Width. I have my DAP-1533 bridged connected to the 657. The DAP has a wired xbox 360 connected to it about 12 feet away with one wall in between.
I played for about 2.5 hours last nite. Was not disconnected and had a good time playing Ghosts.