Channels not playing or stuttering? Fixes

Most stutter and channels that will not play are fixed in Settings in seconds. Try these steps in order.

Steps

1
Switch the live stream format
In Settings → Live stream format, switch between HLS and TS. HLS suits most TVs; TS is often lighter and faster with many providers.
2
Switch the player
In Settings → Player: on Android try ExoPlayer or VLC; on computers the built-in player, mpv or VLC.
3
Reload the playlist
In Settings → Playlists choose “Reload list” to get your provider’s latest version.
4
Check your subscription and connections
Many subscriptions allow one device at a time. If the channel is playing on another device, this one may cut out.
5
Check your internet speed
HD channels need about 8 Mbps and 4K about 25 Mbps. If you can, connect the TV by cable instead of Wi-Fi.

If only one channel fails and the rest play, the problem is most likely that channel at your provider.
If the app says your subscription has ended, that is the player’s subscription on this device; your provider renews it.

Switch the live stream format between HLS and TS; it only affects live channels.

The format is probably not supported by that player. Switch to VLC or mpv.