A peripheral or feature that disconnects and reconnects on a computer is usually a power-management or driver-timeout setting, not failing hardware. For Chromebook account and settings sync, first verify the exact account and sync categories on another trusted browser.
What this covers
- Chromebook account and settings sync with this exact failure state
- Diagnosis across local profile versus Google Account sync, policy and network
What it does not cover
Try in this order
0 of 4 completedCapture the exact failure state
ReversibleNote whether the drop correlates with sleep/wake, a specific USB hub, or sustained heavy use. Expected behavior: restore the intended bookmarks, apps and preferences for the signed-in profile.
Isolate the component boundary
ReversibleVerify the exact account and sync categories on another trusted browser. Test the device on a direct port with no hub, and disable USB selective suspend for that port. Boundary to separate: local profile versus Google Account sync, policy and network.
Correct only the proven cause
ReversibleEnable the needed category or remove/re-add the profile only after local files are backed up. Disable the power-management setting that turns the device off to save power, or update the controller driver.
Verify and stop safely
ReversibleRun the device under the same load that triggered the drop for at least 30 minutes. Do not remove the owner profile or Powerwash with unbacked-up Downloads.
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