I just want to know if the BCD536HP serial port connection is stable after you connected the cable to it? YES or NO? If it is stable then it could be the SDS100 bottom port is flaky then in that case, see if the top port works. If the BCD536HP shows the same symptoms as the SDS100 then it could be the cable or computer.Bob:
I did the cable change, cable works, it is good. I do think that it is some driver or program is effecting the USB port. That confuses it causing to drop or make it look as if the port is in use. When the program stops working, or I first run it, it sees it's attempt to use the port as if the port in in use. When I pull the USB cable and re plug it in it will work most of the time. The program then runs for some time (sometimes long , sometimes a short time). I just do not know, I am not a programmer or a computer wiz! Could fire wall (ZoneAlarm) do this? Could It be Zadig be messing with the port? If this is a pain for you let me know and I will drop it. I know you are busy and this takes you away from your activities. I will muddle my way through this. I do appreciate your time very much. It looks like I am the only one with this problem.
Al
USASA
ZoneAlarm shouldn't be a factor