Netgear WNDR3700 shutdown/standby issues

Hi all. Hoping someone can help me troubleshoot a most annoying problem. I bought a WNDR3700 around 3 or 4 months ago, but haven't been able to use it, because whenever I do, my notebook will not go to standby, nor shut down. Instead of either standby or shutdown, there is instead a blue screen after a few minutes, and then I have to force shutdown.

This is Win7x64, with an Intel 5100 wifi card. Once I became aware of the 5100 problems that were being reported, I replaced that with a Centrino 6300, assuming that would solve my problem - but it doesn't. Exactly the same behavior occurs. I've tried the Lenovo drivers for wireless (the machine is a T400s), and I've tried the latest Intel drivers.

I've also tried the latest DD-WRT firmware on the Netgear router, as well as every version of the Netgear firmware released to date - always with no success.

Any suggestions? Router settings to try, etc.? Any advice appreciated!

 

In case anyone encounters a similar problem, the cause was the Lenovo power management software. Once I uninstalled that, everything works fine.

 

Great info ..I'm looking into wireless dual band routers now for my first laptop
and this is on my list so far.

Thanks !

 

I use one with 2 5300 equipped notebooks and the USB dual band card.

Like it very much!