Need Help! mazak vtc-41 program transfert

hi,

heres my probleme, friday everything works good for transfert cnc file pc to cnc!! monday morning no more upload !!!!!! only output from cnc working!!! pc send file but in cnc no reaction no alarm just waiting!! try 2 different cable that we use on other cnc , samething!! so the probleme should be in the mazak but where , i dont knows!! need help!

thanks

jopcustom