I have run into quite the peculiar bug recently.. After flashing the SM-N900W8 Kit Kat Odin tar, I no longer have any data capabilities. I can still text and perform basic calls, but I have no LTE, 3G, etc..
The odd thing is that I redownloaded the .tar and tried again and it still doesn't give me data connectivity.
I just tried to enter in the Telus APN settings, and it has given me H+ connectivity, but still no more LTE. I honestly don't understand what is happening.
P.S. I end up with LTE just fine on Carbon ROM, or AOSP.
EDIT: Just rebooted the device and I have LTE now.