If you use batteries only for power to console ,and to remote sensor.
Maybe you have notice this : if the batteries is at low level,you can to have
yet data to display (all the data work very fine) ,but suddenly it can to cut
the comunication with pc .
This problem i had this days,and i saw my batteries it is very low level ,i
measurement it one by one with a multimeter and it show only 0,9 volt every one
.It was alcaline batteries.
After i replace it and the comunicate with pc comes again and all it is ok .