Are you using an Ethernet cable or wifi to connect your TV?
re sdav’s comment about the app being on another device,
I have been jumping between watching on two different Chromecast Ultras, a couple of AppleTVs, A Panasonic 2018 smart TV, An Android tablet and an iPad. While I have been sure to close the Spark Sport App before moving to the next device, it has not missed a beat yet.
Is the LG TV App your only (large screen) viewing option?
