After setting up sync on QNAP, the internet connection stopped working

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I set up one-way synchronization to Google Drive on my QNAP NAS.
I configured it for mirroring and immediate sync, but starting that night, I lost internet connectivity.
It seems that the router won’t even power on (maybe it’s frozen?), and I suspect that the sync load may have caused this issue.

Even if I manage to restart the router, since it’s set to immediate sync, I’m worried that the process will start right away and the internet will go down again.

I want to stop the synchronization, but I’d like to ask what I should do if I can’t access the management interface.

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@thir.one

I apologize if this is just my personal approach, but I hope it will be of some help to you.

  1. Disconnect the NAS from the network (standalone mode).
  2. Connect the NAS directly to the PC for operation.
    The IP addresses will likely both be 169.254.x.x.
  3. Check the IP address with Qfinder and access the NAS.
    *If the network addresses are different, adjustments will be necessary.
  4. Log in to the NAS, enter HBS3, and temporarily stop the job.
  5. Restore everything to its original state.

However, I don’t think one-way synchronization to cloud storage will consume enough network bandwidth to significantly impact performance (since cloud storage performance and response times also play a role). After trying the above, it would be good to check if there are any other causes.

From what I’ve heard, when someone started backing up to cloud storage, they received a warning from their ISP saying “Too much uploading!” and were informed that “If this continues, the ISP will throttle upload bandwidth.” It might be wise to check the conditions under which your ISP imposes bandwidth restrictions as well.

One more point: after restarting the NAS, you can log in to the NAS before the restart is fully complete (before all services are up). Logging in quickly at that timing and turning off the HBS3 service temporarily might be an option.

I hope this is helpful to you.

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Thank you very much for your valuable feedback.
This was exactly the answer I was looking for, so I really appreciate it.

For now, I will check if I can stop the synchronization when I am able to log in after restarting the NAS, and if that proves difficult, I will try the procedure you suggested.

This time, I started immediate one-way mirroring synchronization from the source (with multiple files) to the destination (with only empty files), so I was worried that uploading a large number of files might have put too much load on the network;;

Since you mentioned that the performance is usually not that high, I will also check for other possible causes.

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