If the Keyboard Volume keys are not working on your Windows computer, then follow the steps mentioned here to resolve the issue. Why are my volume keys not working Windows 11/10?

Why is my Sony TV volume too low or has no sound? One issue that Sony TV owners might experience is when the volume does not appear to be working.

Sometimes the volume buttons on an Apple TV Remote or Siri Remote can become unresponsive for no obvious reason. This article outlines what you can do to get them working again.