The list may be way longer than you realize, including not only smartphones and computers, but also:
Consider turning some of them off when not in use to maximize bandwidth.
Ensure all devices are fully turned off (not just paused) when not in use. These include:
Finally, limit your uploading and downloading of large files during the work/school day, and schedule cloud-based backups to happen overnight to free up daytime bandwidth.
It may take some planning and practice, but by following these guidelines, you can optimize your home connection and make it possible for everyone in your household to keep their lives running — online.
Have you tried everything and are just not getting the performance you need? There are a couple of popular solutions you might consider: