The Smart LED with Security Camera is a WiFi camera; it is reliant on your router’s WiFi at the location of use.
The video in the history tab being intermittent is almost always due to the WiFi having poor bandwidth or poor signal strength at the location the Snap is being used.
For information on how to test your bandwidth and signal strength, please see this tutorial: https://support.sengled.com/hc/en-us/articles/115005700207-What-kind-of-Internet-bandwidth-Wi-Fi-signal-strength-is-recommended-
Video interruption can also be caused by the Snap not receiving constant power.