Why is my Blink Sync Module Offline? [Fix in Minutes]

If you have a Blink camera system at home, you probably know how important the Sync Module is. It’s the device that connects your cameras to the Blink app and the cloud, allowing you to view live streams, receive notifications, and store clips. Without the Blink Sync Module, your cameras are basically useless.

That’s why it can be very frustrating when your Blink Sync Module goes offline. You might see a message in the app saying “Blink Sync Module Offline” or a red LED on the front of the device. This means that your Sync Module is not communicating with your Wi-Fi network or the Blink servers.

So what causes the Blink Sync Module Offline Problem and how can you fix it? In this blog post, I’ll share with you my experience with this issue and how I solved it. Hopefully, this will help you get your Blink system back online in no time.

What Causes Blink Sync Module Offline?


There are several possible reasons why your Blink Sync Module might go offline. Some of them are:

  • Wi-Fi connectivity issues: Your Wi-Fi network might be unstable, slow, or congested. This can affect the quality of the signal between your Sync Module and your router. If the signal is too weak or drops frequently, your Sync Module might lose connection and go offline.
  • Power supply problems: Your Sync Module might not be getting enough power from its outlet or USB cable. This can cause it to malfunction or shut down unexpectedly. Make sure that your Sync Module is plugged into a working outlet and that the cable is not damaged or loose to get rid of Blink Sync Module Offline Issue.
  • Outdated firmware: Your Sync Module might be running on an old version of firmware that has bugs or compatibility issues. This can prevent it from connecting to the Blink servers or receiving updates. Make sure that your Sync Module is updated to the latest firmware version available.
  • Router compatibility issues: Your router might have settings or features that interfere with the communication between your Sync Module and the Blink servers. For example, some routers have firewalls, VPNs, parental controls, or other security measures that might block or limit the traffic from your Sync Module.
    You might need to adjust these settings or disable these features to allow your Sync Module to connect properly.

How to Fix Blink Sync Module Offline?

Depending on the cause of the problem, there are different ways to fix your Blink Sync Module offline issue. Here are some of the steps that I followed to troubleshoot and resolve this problem:

1. Check Your Wi-Fi Connection

Why is My WiFi slow scaled

The first thing that I did was check if my Wi-Fi connection was working properly. I used my phone to connect to the same Wi-Fi network as my Sync Module and checked if I could access the internet. I also ran a speed test to see if my Wi-Fi was fast enough for my Blink system.

If you find that your Wi-Fi connection is not working or is too slow, you might need to reboot or power cycle your router. To do this, unplug your router from its power source, wait for about 30 seconds, and plug it back in. Wait for a few minutes until your router re-establishes its connection and then check if your Sync Module is back online.

If your Wi-Fi connection is working fine but your Sync Module is still offline, you might need to move it closer to your router. The ideal distance is 5-10 feet away from your router. You should also avoid placing your Sync Module near any sources of interference, such as metal objects, microwave ovens, cordless phones, or other wireless devices.

You can check the signal strength of your Sync Module in the Blink app by tapping on its name and looking at the bars on the top right corner of the screen. You should see at least 3 bars of signal strength for optimal performance.

2. Power Cycle Your Sync Module

power cycle blink sync module

The next thing that I did was to power cycle my Sync Module. This means unplugging it from its power source, waiting for about 10 seconds, and plugging it back in. This can help reset its connection and clear any errors or glitches.

To power cycle, your Sync Module, follow these steps:

  • Locate your Sync Module and unplug it from its power source.
  • Wait for about 10 seconds.
  • Plug it back into its power source.
  • Wait for about 45 seconds until your Sync Module reboots and displays a solid green and solid blue light on the front.

If you see any other light pattern on your Sync Module, such as flashing red or no light at all, you might need to delete it from your system and set it up again.

3. Delete and Re-add Your Sync Module

The last thing that I did was delete my Sync Module from my system and re-add it. This can help update its firmware, refresh its settings, and re-establish its connection to the Blink servers. This is a bit more complicated than the previous steps, but it worked for me.

To delete and re-add your Sync Module, follow these steps:

  • Open the Blink app on your phone and tap on the Sync Module Offline banner at the top of the screen.
  • Tap on Delete Sync Module at the bottom of the screen.
  • Scan or enter the serial number of your Sync Module. You can find it on the back of the device or on the box that it came in.
  • Tap on Delete to confirm.
  • Tap on Add a Sync Module at the bottom of the screen.
  • Follow the instructions on the app to set up your Sync Module again. You will need to scan or enter its serial number, connect it to your Wi-Fi network, and name it.

After you have successfully added your Sync Module back to your system, you should see it online in the Blink app and be able to use your cameras as normal.


I hope this blog post helped you understand why your Blink Sync Module might go offline and how to fix it. I know how annoying it can be when your security system stops working, so I hope you were able to get it back online quickly and easily.

If you have any questions or comments, feel free to leave them below. I’d love to hear from you and help you out if I can.

And if you’re looking for more tips and tricks on how to use your Blink system, check out these other blog posts that I wrote:

Thanks for reading and happy Blinking! 😊

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