hi i have several mag 254 boxes and purchased donations from NFPS.but on Saturday 9th January 2016 several of the boxes stopped working with a message on my TV screen Please contact your service provider to register this box. When I tried reinstalling the donation code to the MAC Address on the Mag 254 a message is on saying this MAC alredy exists. my donations have 265 days remaining please send me info to rectify this issue Thanks Tony