Blue Screen of Death on PC Shutdown

[n6xi]

Since I got computer logging working by connecting the control site PC to the USB port of the Control RRC, my Windows 7 Home Premium O/S has been crashing on most shutdowns with the infamous "Blue Screen of Death." I forcibly power it off and back on and do a "Normal" Windows reboot and all is well. If I unplug the serial cable from the RRC to the PC, the problem does not occur.

I have also noticed that the virtual serial port that I use to access the remote radio from the local site PC logging program tends to fail after a period of disuse even though it stayed alive throughout a four hour Sprint contest. I have a feeling, not proven, that these two behaviors are related. However, it is not necessary that I run the logger (Writelog) to provoke the crash upon PC shutdown.

Has anyone experienced this? I suspect some rare combination of O/S version and other system tray stuff.

/Rick N6XI

[Jan (Microbit)]

A long shot: Have you tried another USB cable?

[n6xi]

Good thought. I tried it but had the same result. I don't even have to use the RRC. So long as it is powered up and connected to the PC for a while, PC shutdown triggers in this crash.

[W1UE]

I have not seen the BSOD here- using Win7 64 bit.  I have noticed that the virtual serial port that I use for RTTY does stop working after awhile, and I find a reboot necessary for it to work again.  Yes, I have that USB port power control set at "Never
turn off", or whatever the wording is to keep Win7 from shutting down the power to the port.

Dennis W1UE

[Jan (Microbit)]

Have you checked the status of the ports in Device Manger when they have stopped working? Is it still possible to open/close them, or does it give some error message?

[W1UE]

Next time it happens, I will check that.

Dennis W1UE