Hi guys
Have encountered a strange issue with 2 PC's.  Both have identical installs and only run 1 application.
After an idle period, the NIC disconnects and requires a disable/enable to re-establish comms.  The on-board network port remains active and functional.  Issue is with the secondary card.
Are there any power management or card specific settings to stop this from happening?

OS is Win 7 64Bit

I have had a scrounge around the settings and cannot see anything that would be stopping the card, initially thought it was power management.

Thoughts welcome