Hi!   I have two MD680's with the Factory cable and software, tried it one three computers, with three different OS's and four cables...  same problem..  when I go to read it, the red light blinks
a couple of time, and the message comes up "Check connection, retry or cancel...    When using this cable and computers on another TYT radio (UVF8) it works fine.....

Any Ideas?

Thanks!

Glenn