The set-top-boxes are stop playing upon got "Update channel list" message. They also having this behaviour when a channel has been changed in their tariff plan subscription. (for example changing a channel name its ip address or adding/deleting a channel). This casue major issue when more channels must have been modified. This came with a Ministra TV Platform upgrade long time ago and still not fixed. Just let keep playing the box and it should check the playlist when user goes to channel list or any other action.