WPN111 High CPU usage

[ThatPhilBrettGuy]

If just got a RangeMAX bundle that had a wireless router and a WPN111 USB adapter. When it works there's a noticable performance increase over standard G kit.

But, it eats CPU (70% kernel time on an AMD 64 3200+ ASUS motherboard) when downloading at 3500K/sec. Also when uploading at this pace, it works for about a minute before all transfer stops and the device has to be removed and plugged in before it'll work again.

I'm running the lastest drivers.

Anyone else seen this?

Thanks

Phil