HI Shawn, Thanks for posting. I can see the device has deregistered as you mentioned for SIM ending in x5052 on 2017-09-21 07:31:14. A deregistration event can be caused by the network due to inactivity which is a system timer parameter. The device also shows no data usage and in a provisioned state, which also is in line with no network activity and the network forcing the device off the network. Hope this answers your post.