Using the on-remote help, Logitech’s harmony remote user forums – Logitech Harmony One User Manual
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When one or more of your devices don’t power on or off, or when they don’t switch inputs
correctly, you can use the Help button on the remote for simple troubleshooting. Answer
the questions on your Harmony One to re-synchronize it with your entertainment system.
See
Using the On-Remote Help
You can also access the user forums to see what other users like you’re discussing. Simply
.
Logitech’s Harmony Remote user forums