If you can send a pgm from machine to comp. I think you have all your settings fine (maybee not optimized). Try creating a eia program on the machine and sending it to your pc. Look at the file name and extension as the mazak outputs it. (I think you are trying to send a file with an incorrect extension or filename.) delete the program off your machine and try to send it back to the machine from your computer.
Are you using EIA/ISO (g-code) or mazatrol?
hope this helps, I once had a similar issue with a vtc16 with pcfusion