TP-Link Kasa Real-Time Clock / Cloud Sync Issue

Thermostat loses time or date, causing schedule to run at wrong times

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Possible Causes

No internet time sync, Firmware bug in clock, Power interruptions without proper backup, Router blocking NTP/time services

How to Fix / Troubleshooting

Steps:

  • Check internet: Ensure the thermostat is online in the Kasa app and your network has internet access.
  • Time zone: In the Kasa app, verify the correct time zone is selected for your account or device.
  • Router settings: Ensure your router is not blocking NTP or time synchronization services.
  • Firmware update: Update the thermostat firmware via the Kasa app if an update is available.
  • Replace thermostat: If time drift continues despite stable internet and updates, the internal clock or backup power circuit may be defective.
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Repair Difficulty

Easy 2/5

Required Part

Thermostat Real-Time Clock / Backup Power Circuit
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