I have an Router WZR-HP-G300NH with DD-WRT and I do use the intel 6200 AGN Wireless card in my laptop. I use the DD-WRT v24SP2-MULTI (04/12/11) std - build 16783 and as well the official version from Buffalo. Now I have the issue that exactly after 5 Minutes my wirelless drops from 300mbps to 130mbps what is not normal. I played around allready a lot of time with the setting etc. and didnt fin any resolution till now. I use just the wireless N Mode in 40MHZ. But always after exactly 5 Minutes the connection drops to 130mbps nd I can not life with this. I use the latest driver from intel which I installed but after 2 month of playing I could find any solution for it.
I would be happy when you have some suggestions for me.....
Start> Control Panel> Device Manager>
-Under Network adapters right click on N6200 AGN> Properties> Advanced Tab>
-Select "802.11n Channel Width for band 2.4"> change Value to "AUTO"
And you should get 300Mbps, if your router supported it.