Yes, if I unplug the USB and plug it back in it begins showing live data and datalogging correctly. This can be seen in the attached datalog around the 34 sec mark. You can also see that after about the 9min mark the wheel speed sensors stop logging again. The lid is closed and screen off on my laptop while driving around so I do not think it is the screen going to sleep. The other indication it's not related to an inactivity timer on the laptop is that the time at which is stops datalogging is not consistent......sometimes it stops after 5 mins or so, sometimes 10ish, sometimes 12-15 mins. Thank you for the help.
If unplugging it and plugging it back in resolves it, then it may just be some kind of interference that is causing it to stop datalogging. YOu could try a different USB cable or check your spark plugs to make sure that they are clean and resistor type.