I would like to know if It is happening when you upload run a program every-time or just occasionally?
Do you see any error message from AT3600 ? " SERVER not Responding "
normally the SERVER will freeze or not responding when the communication between PC and AT3600 is not properly establish. it will happen when you running a Test then suddenly the communication interrupt the SERVER Software will not response. Have you try to replace your cable ? Try to replace your cable and let me know if will work. if not please provide your contact detail or call me so me can discuss further. Thank you.
Mark Christopher S. Chavez
Application Support Engineer
DD: +1 941-527-3425
TEL:+ 239-437-0494 EXT 105