A player that restarts or becomes unstable may have a power problem rather than a media-delivery fault. Use the manufacturer's specified supply and cable. A television USB port is not automatically suitable for powering every attached device.
Observe the whole device
A full startup logo or lost remote connection suggests more than one stalled stream. Note whether the player rebooted, the app closed or only the picture paused. These are different symptoms and deserve different troubleshooting paths.
Check the supported supply
Use the intended power adapter and inspect the cable for damage. Avoid unverified chargers or overloaded hubs. Do not open mains equipment or improvise electrical repairs; replace unsafe components through an appropriate source.
Retest before network changes
With correct power, replay the original programme under the same connection conditions. If restarts continue, consult device support. Repeatedly changing the server address cannot repair a player that is losing power.