@kccmcc Hello, freezing and signal loss are generally signs of a signal issue. I recommend ensuring that all connections and wires are tightly fastened and free of damage. Do you have a splitter? If you do, please make sure the splitter is in working condition. Splitters can fail without warning or experience signal degradation over time. Here's some troubleshooting information for the DVR system:
http://bit.ly/2KCz3D6
If you continue to have issues, then the next course of action would be to send out a service technician. Please feel free to reach out to us at cox.help@cox.com for additional assistance. -Kevin M. Cox Support Forum Moderator