Data connection is not getting enabled after 24 hrs from reboot.

[racksrrs]

Hi,

I am using lumia 720, every time i have to restart my mobile to enable data connection, even if I do it ll work good only for next 24 to 30 hrs max...and if i disabled and try to enable the data settings again after 30 hrs from the previous reboot it wont work, again i have to restart the mobile to make it work...help me to overcome this issue...:unhappy: