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C108

Google Nest C108 on camera: internet too slow or dropped

Verified with sources1 sourceReviewed Oct 4, 2026
Technician coming? See the 2 steps they must show you
IP dome security cameras
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Risk level

Low

Usually safe to check without specialist tools.

Urgency

Low

Quick answer

C108 appears when the Nest server didn't respond to your device during setup, because the internet dropped or bandwidth was short. Run a speed test and, if it's slow or dropping, restart the modem and router.

Safety first

Stop and check this first

  • Restarting the router leaves the whole home without internet for a few minutes.

Safe checks you can perform

  • Internet speed test
  • Modem and router restart
  • Camera restart and fresh setup

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Escalate to Google Nest support
  • Do not attempt this professional task: Line check by the internet provider

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Escalate to Google Nest support

    What they doIf the line is stable and fast and C108 repeats, Google support reviews the case, including their service status.

    They must show youwhat they checked on their service and the device.

    In writingthe case number and conclusion.

  2. Line check by the internet provider

    What they doThe internet provider checks the stability and speed of the line and router.

    They must show youthe stability and speed tests on the line.

    In writingthe fault found and how it was fixed.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Internet speed test

    No special tools

    Who:
    you.
    How:
    run an internet speed test on the same network and make sure there are no unexpected bandwidth issues, as Google asks.
    Result that matters:
    whether the connection is stable and fast enough.
    If it is very slow or drops:
    that explains C108; restart the router and, if it continues, call your provider.
    If it is fine:
    still restart the modem and router to rule out an unstable state.
    Evidence to keep:
    screenshot of the speed test with the time.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

  2. Modem and router restart

    No special tools

    Who:
    you.
    How:
    unplug the modem and router for 30 seconds, plug them back in and wait for steady power and connection lights. Then check a page loads with the phone in Airplane Mode and only wifi on.
    Result that matters:
    whether the network browses after the restart.
    If other devices still have no internet:
    contact your provider to restore service.
    If the network browses:
    restart the camera and retry.
    Evidence to keep:
    photo of the router lights and screenshot of the test.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

  3. Camera restart and fresh setup

    No special tools

    Who:
    you.
    How:
    quit the Nest app, restart the camera and set it up again.
    Result that matters:
    whether setup completes without C108.
    If it completes:
    the drop or slowness was temporary.
    If C108 returns on a good connection:
    contact Google support.
    Evidence to keep:
    time of each attempt and the speed test result.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Networks
Brand
Google Nest
Product type
Security cameras

Known code variants

  • C108
  • cámara Nest C108
  • Nest Cam C108
  • Nest camera C108
  • Nest server didn't respond
  • Nest servidor no responde

What it means

Google explains that C108 appears when the Nest server didn't respond to a request from your device, which happens if you lose your internet connection during setup or the network has bandwidth issues. Unlike the wifi codes, the local link may be fine here; what fails is the internet connection or its speed. The code does not prove the camera is faulty.

Warnings and stop conditions

  • Loweditorial warning

    Restarting the router leaves the whole home without internet for a few minutes.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

Symptoms and causes

Probable causes · in order

  • Internet dropped during setupCommon

    If other devices lose connection too, the service is at fault and Google points to the internet provider.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

  • Not enough bandwidthPossible

    A speed test shows whether the connection is too slow to complete setup.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

  • Unstable router or modemPossible

    If setup finishes after restarting them for 30 seconds, the network equipment was at fault.

    Evidence: Troubleshoot Nest camera and doorbell setup messages

Virtual technician

Does C108 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

Sources: Troubleshoot Nest camera and doorbell setup messagesreviewed 2026-10-04 · verified

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