Battery Drain on Moto X Pure

Hi,

I recently bought a Moto X Pure and after updating to 6.0 now have a battery drain problem. "Signal Standby" is my second most used in the battery screen. Under that stats it shows 0% time without signal. I live and work in an area that has great reception. Phone is factory unlocked, but nothing modified.

I have tried factory reset and using an app called gservicefix with no results.

Any help would be appreciated.

Thanks!