Harmony fails to sync

Here are some troubleshooting steps for resolving Harmony remote sync errors. If you're new to Harmony and need help getting started with your setup, please select your remote from the product support section of our home page.

Related articles: Harmony remote is not responding Troubleshooting Harmony Software Syncing changes to Harmony Harmony isn't being detected by your computer Contact us

Resolving sync issues

Harmony IR based remotes:

  1. Check, and if needed, update your Harmony software to the most recent version.
  2. Restart/reboot your Harmony remote.

Harmony Hub‑based remotes:

  1. Check, and if needed, update your Harmony software to the most recent version.
  2. Ensure you're using the latest version of the Harmony mobile app from Google Play or the Apple Store.
  3. Restart/reboot your Harmony remote (and hub), mobile device and Wi‑Fi router.
  4. For mobile devices, turn off then back on (or toggle) Wi‑Fi as well as Bluetooth.
  5. Make sure the Harmony mobile app and hub are on the same Wi‑Fi network.
Using Harmony legacy software with Mac?

If you're using Harmony Remote Software v7.x with a Mac and your Harmony is not able to sync, you can try using our driver patch to resolve the issue.

Additional troubleshooting

Sync fails with MyHarmony desktop software:

If the Harmony remote isn't being detected by the computer and therefore the MyHarmony desktop software isn't allowing you to sync, then please review: Harmony isn't being detected by the computer.

Sync button colors
  • The Sync button is grey when there are no changes to sync.
  • The Sync button is yellow when there are changes to sync, but the remote is not connected to your computer.
  • The Sync button is blue when there are changes to sync and the remote is connected.

If Harmony is detected, but sync fails at a certain percentage:

Sync fails with the Harmony mobile app:

Reboot Harmony Hub by disconnecting the power cord, then plugging it back in and waiting 30 seconds for it to turn on again. The light on the front of the hub should be green once complete. Once complete, force the Harmony app to close on your mobile device and then relaunch it.

Forcing the Harmony app to close:

Please be aware

If you continue to experience issues when attempting to sync using a mobile device, then we recommend connecting harmony via USB and attempting the desktop steps.

Sync fails with the Harmony remote:

Connect Harmony to your computer using the supplied USB cable and sign into your account using the MyHarmony desktop software. Click Sync. For additional steps view: Syncing changes to or from your Harmony.

Connect via USB
Please be aware

Harmony remotes cannot receive firmware updates over Wi‑Fi. If you receive a firmware notification on your remote screen, then connect Harmony to your computer using the supplied USB cable, sign into your account using the MyHarmony desktop software and press Sync.

  • Harmony Ultimate: connect the remote directly to the computer.
  • Harmony Smart Control: connect the hub directly to the computer.
  • Harmony Smart Keyboard: cannot connect to the computer and must update directly from the Harmony app.
Elite Home Control Home Hub Hub Smart Keyboard Link One Smart Control Companion Touch Ultimate Ultimate Home Ultimate Hub Ultimate One 950 Pro 200/300/350 600/650/665/700

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Our Activity troubleshooter can fix most problems

We recommend visiting our Harmony Activity troubleshooter to help narrow down the specific problem and find instructions on how to correct it. Device not turning on? Switching to the wrong input? We can help.

Or, you may want to visit our community forums. Harmony product managers actively participate and provide help.


Thank you for being a Harmony customer