Recently i bought a router, WCR-GN. But it didnt works with my iPod2G/iPod3G/iPod4G/ Iphone4/ iPhone3GS/ Samsung GalaxyS2/ Motorola Atrix and iPad2 via Wifi. It will just keep connected wirelessly but actually the wifi will automatically swiched off after several minutes. I have to switch off the wifi in the iphone and turn it on again to gain access to internet for 5minutes. I have to repeat the same step every 5 minutes to keep the wifi awake.
Since then I changed my ISP as well but the problem still exists so this is not the problem of my ISP.
Then i decided to buy the other one, with the same model, WCR-GN. Unfortunately the same issue remains. I've updated it to the newest firmware as well. I sent the router to the Buffalo repair centre but the testing result is possitive - The wifi is good, tested with a Acer laptop, not iPod.
It wasted me money, seriously.
if you cant work with iPod just put a label on the box "Works perfectly expect iPod". I found this is misleading.
Oh ya, i found someone who got similar issue as me. Take a look.
http://http://forums.buffalotech.com/t5/Wireless/WCR-GN-internet-connection-issues-with-iPhone-4/td-p/45119
Legal action would be taken if no solution is provided.