G4 not turning on with Apple TV

Just started recently but occasionally the G4 won’t turn on when I turn on the Apple TV.

And yesterday the G4 wouldn’t even turn on using the LG remote. I had to unplug the tv first before it would work again.

Anyone else experiencing this? Anything I can do to troubleshoot it. I haven’t changed any settings on either the G4 or the Apple TV since new and up until a short while ago was working without issues.