SAME HERE!!! I am writing this because now I am completely pissed by this product!!!

Just got the router for a month. Wireless drops every few minutes.
Upgraded and downgarde to different FW versions 1.10, 1.11, 1.13, 1.20 and 1.21...
With all the methods, change advanced wireless settings... change channel.
Don't ever tell me is my ISP problem, because when the wireless disconnected, my pc with the wire still got the connection.
and also the WEP/WPA/WPA2, AES/TKIP things, I tried them with more than 20 times different combinations...
the only thing I so glad which is I didn't get ride off my Linksys 54g router after getting this piece of s***, and I put it back, no disconnected wireless anymore!
Thanks DLINK, you have done a great job to lose a customer!