I am using a new D-Link DIR-825 flashed with dd-wrt v24preSP2 build 18024.
The router is set up as an Access Point (AP) simply extending the network. We have used this guide to set it up.
The router seems to drop packets. We need to reload pages when browsing the net, and outlook connections are going up and down. The problem seems to be the same on both android phones, iphones and osx laptops. On my windows 7 machine I don't seem to have the same problem, but the network feels somewhat slower when browsing.
I don't know if it's relevant but my networks speeds are as follows:
With cable I get close to 94 Mbit/s downstream 11 Mbit/s upstream.
Wireless I get 19Mbit/s downstream 11 Mbit/s upstream.
How can I troubleshoot the router?