Default android 4.3 data loss or wifi loss fix

ok so i just updated my phone to android 4.3 and i ended up losing my wifi and data it took me 5 hours to fix this problem and 2 hours talking to samsung. the only way i was finally able to get anything to work was to reroot with odin and installing google edition rom and wifi and data works im now going to try one of the custom tw roms but if your stuck try to switch to this rom if your on mk2 modem it fixed my problems. good luck.
and warning if you do end up rooting and flashing a rom you do lose your warrenty for now :/