Personal hotspot not working

I have a black 16 GB iPhone 4S on Rogers running iOS 7.1 version. For many years I had the ability to create a personal hotspot for sharing my data with my MacBook Pro and iPad while on 3G away for the office.

I am on a very old 6GB plan. However, last night I noticed that my 4S Personal hotspot feature is no longer turning on on 3G only Wifi and Bluetooth.



Does anybody know have any idea why my iPhone 4S Personal hotspot on 3G is not working?

Thanks

via ehMac.ca http://ift.tt/1iRKGBU