GPIB-USB-HS hang on Windows hibernate

[Madmanguruman]

We have many PCs deployed with Windows XP SP3 and Windows 7 (32- and 64-bit), running NI 488.2 3.1.2, VISA 5.2 and running GPIB-USB-HS interfaces. If the PC ever hibernates (a common occurrence for laptops), when the PC is awoken, GPIB communications fail 100% of the time. The interface is visible from MAX, but cannot communicate any longer - no devices will appear if a device scan is initiated. The only way to get communications back is to either (1) disconnect the GPIB-USB-HS and connect it to a different USB port (such that the driver is reloaded) or (2) shut down and restart the PC. I'm fairly certain that this isn't a 'new' bug, as older versions of 488.2 / VISA show it as well. (This issue has prompted us to update to the latest 488.2 / VISA versions on most of our machines, which is obviously a plus, but that hasn't resolved the issue.) Apart from completely disabling hibernation, are there any known workarounds to prevent this hangup?

[JÞB]

Power management options on the USB Hub are probably at the default (shut down power)  Ude device manager to change the setting.

Why is your test machine hibernating anyway?  you should be using a performance power profile.

[Madmanguruman]

Many engineers have laptops which are moved from place to place (benches, meetings rooms) having aggressive battery management policies enforced. We do disable hibernation on standalone test desktops. I will take your advice on the USB port setting. Thanks for the reply.