Blink Sync Module Offline? (6 Tips to Fix)

Last updated on April 13th, 2024

Blink Sync Module is an excellent way of storing security footage locally on a USB drive. You connect up to 10 cameras to it and collect recordings from all of them in a single place. But if the Blink Sync Module keeps going offline, that won’t happen anymore.

Recorded videos will stop getting stored on the USB, and you could lose important data. So, what should you do when you receive a message, “Blink Sync Module offline”? How will you even know it is offline? Let’s try to find everything out in this article.

Blink sync module offline notification
Blink Sync module offline notification

First of all, people hardly ever realize that their module is offline. It’s either they notice the Blink sync module offline because of the blinking blue light, or they read the notification that pops up on the main screen of the Home Monitor app.

When you open the Blink app, you’ll notice a box with a blue border at the top with the triangle symbol for error. And the box will say ‘Blink Sync Module Offline.’ That is how you identify the problem. But what exactly does it mean? It means the module is no longer connected to the app. There’s some kind of connection error, which could be because of a number of reasons.

Reasons why it occurs

Let’s discuss some of the common reasons why the Blink Camera Sync Module offline error occurs.

1. Power outage

The Sync Module is powered by a 5-volt power supply via a USB cable. When it doesn’t get enough power, it could go offline. The reason could be a power outage, a faulty plug, a broken USB cable, or an issue with the adapter. All of this leads to insufficient power supply to the module.

2. No internet

The Sync device is connected to the Blink Home Monitor app via a Wi-Fi network. It requires a stable internet connection to stay connected. So, if the internet is down or if you place the device out of the Wi-Fi network’s reach, the Sync Module could go offline.

3. Outdated firmware

Blink is constantly releasing security updates on all its devices, including the Sync Module. If your device is not getting updated with the latest security updates, it will eventually cause issues. By not updating your device firmware, you are also increasing the risk of security concerns.

The same applies to your Wi-Fi router. You must check for firmware updates with your service provider. If either the router or the module has very outdated firmware, the Sync Module could go offline.

4. Router Settings

Did you recently change your Wi-Fi router settings? Or maybe someone else from your family did. If you set up a firewall for your router, it could block the signal from the Sync device and thus cause the Sync Module to be offline. A firewall prevents some devices from connecting to the local network if it doesn’t completely recognize it.

Now that we know what causes Blink Sync Module Offline errors, we can work on solutions to resolve these errors.

Here are some of the most commonly used solutions to fix this issue.

1. Check power supply

The first to do is check whether your Sync Module is properly connected to the power supply. A solid green light on the device should indicate that it is powered on. If it isn’t:

  • Use a different charging port
  • Changing the USB cable
  • Try a different 5 Volts adapter

Once it powers on, your module should connect back to the app. If it doesn’t connect automatically, you must do the setup procedure.

2. Restart Wi-Fi router

If the issue is with the Wi-Fi router, like poor internet speed or no internet access, then you should try to restart it. Most modern routers are connected to a regular power supply from the house.

  • So you can just switch off the button so the router powers down.
  • Wait for 5-10 minutes, and then switch it back on.
  • Your router will take a minute to configure its settings and start running again.
  • Check now for proper internet speed.
  • If this doesn’t work, contact your service provider and request technical assistance.

3. Restart Sync Module

Check the power supply of Blink sync module
Check the power supply of the Blink sync module

There are two ways to restart the Sync Module:

  1. By doing a power cycle
  2. By using the reset button

To restart the module using the first method, do the following steps:

Step 1: Unplug the power cord from the module.

Step 2: Wait for a minute.

Step 3: Plug the power cord back in.

This should do a complete power cycle and restart the Sync device. To restart the Sync Module using the reset button, you can carry out the following steps:

Performing a soft reset
Performing a soft reset

Step 1: Locate the reset button on the module. It is on the back of the camera.

Step 2: Press and hold the reset button for 5 seconds with the help of a small pin.

Note: Don’t hold the button for more than 5 seconds if you want to do a soft reset without losing any data.

Step 3: Release the reset button and wait for the device to restart.

This should do the job. This is one of the most effective methods to resolve the Sync Module Offline issue.

4. Set 2.4 GHz band on Wi-Fi

A 2.4GHz Wi-Fi router
A 2.4GHz Wi-Fi router

All Blink devices only support the 2.4 GHz Wi-Fi band. So, if your Wi-Fi is set to the 5 GHz band, the Sync Module won’t connect and remain offline. You’ll need to change your Wi-Fi frequency to resolve this. How can you do that? Here’s how:

Step 1: Open any browser on your laptop/computer.

Step 2: Type the IP address of your Wi-Fi into the search box. You can find the IP address on the back of your Wi-Fi router.

Step 3: You’ll be asked to log in using your password. Enter the correct password and log in.

Step 4: Open the ‘Advanced Settings’ and look for ‘Wireless Settings.’

Step 5: Select the 2.4 GHz band from the two options and save and apply the new settings.

This will change the band frequency of your Wi-Fi. Now, try connecting the module again. It should connect now without issues.

5. Reset Sync Module

Resetting a sync module (Hard reset)
Resetting a sync module (Hard reset)

If a soft reset doesn’t work, you’ll need to do a hard factory reset on the Sync Module. This will disconnect all the cameras connected to it, and even all the customization settings in the Blink app wi reset to default.

You’ll need to add all the Blink cameras back to the module one by one and also customize the app settings again. So, make sure you are absolutely ready to do that before doing a hard reset.

The following steps will guide you to perform a factory reset on your Sync Module:

Step 1: Locate the reset button on the Sync Module.

Step 2: Press and hold the reset button for 30 seconds.

Step 3: Release the button and wait for the device to restart on its own.

You’ll see the indicator lights turned on when the module is reset. Now, add the module to the Blink app and then each of your Blink cameras.

If none of the above solutions worked for you, there might be some hardware issues with the cam. If the Sync Module remains offline for an extended time and you are not able to resolve it, just contact Blink Support. They’ll probably tell you to try all of the above options first. You can tell them that you have already done it, and they will suggest alternative solutions.

All of these are solutions for after your Sync Module has gone offline. But there are certain preventative measures you can take to prevent that from happening in the first place.

Prevent Sync Module Connection Issues

To prevent the Blink Offline error, you can do the following:

  1. Set the correct Wi-Fi frequency band.
  2. Place the device where it receives a good Wi-Fi network.
  3. Keep the module firmware and Blink app updated.
  4. Ensure that the module receives a continuous power supply.


Blink Sync Module Offline is one of the common errors Blink users see on their app. It’s usually easy to resolve. All you have to do is ensure it’s getting proper internet speed and power supply. If the issue persists, you can restart or reset the module. If nothing works out, Blink Support is your best bet.


Why does my Blink Sync Module go offline every night?

There could be fluctuations in electricity or your Wi-Fi network at night, due to which the Blink Sync Module goes offline.

Do I need continuous Wi-Fi for Blink Sync Module 2?

Yes, you need continuous Wi-Fi for Blink Sync Module 2, as it needs to stay connected to the Blink app via the Wi-Fi network.

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Siddhi Gurav

She is the editor and content writer at Smart Home Bulls. Siddhi merges her passion for language with SEO expertise. With 4 years of experience as a creative writer and a passion for smart home technology, she fits in perfectly at Smart Home Bulls. Her wide experience in content marketing has been an excellent addition to our team.

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