OTA Update not Working topic

I can't seem to get the OTA update to work. I am currently on NCE 4.2.2. I have been having lots of signal problems and finally decided to update, but it will not update. I have tried a normal factory reset, SD card update (stock recovery), flashed stock TAR files via Odin, and have tried the regular OTA countless times. This is ridiculous: it should update. There is no reason for it to fail: it is completely stock. Root has been wiped out (confirmed with a root checker). I miss my N5 :(.

Any other ideas? Sorry if I posted in the wrong section. Move me around as needed. Thanks!