dongle error

respected miracle team leaders;

i recently buyed two sets from reseller ultimate sales gujarat (india) last month dec 2015 when i connected box all ok it got opened on my both system thn i did press register dongle n box closed, n i again open the both box i m getteing error of box n dongle mismatch.. what can be done sir plz help… i readed ur all post my box n dongle r freshly buyed n i did ur all solution but not gettig success….

box serial-MBCM151115NBA793
box 2:-MBCM151115NBA76A