Installing the Blink Doorbell and Sync Module on an eero Whole Home WiFi System (Avoiding the 2.4 GHz Setup Trap)

Learn how to install your Blink Doorbell and Sync Module on an eero Whole Home WiFi network. Avoid setup issues by connecting your phone to the 2.4 GHz band before & during installation.

Understanding the 2.4 GHz vs 5 GHz Issue

Many Blink users experience setup failures when installing their Doorbell and Sync Module on an eero dual-band WiFi network. The reason lies in how eero combines its 2.4 GHz and 5 GHz frequencies under a single network name (SSID).

While this setup simplifies device management, it creates a problem:

• Blink devices AND your PHONE require 2.4 GHz during installation.
• Phones often default to 5 GHz, which is faster but incompatible for Blink’s initial pairing.

Once the setup is complete, Blink products can operate normally within a dual-band environment, but getting through installation requires a deliberate 2.4 GHz phone and Blink device connections.

Symptoms of a 5 GHz Connection Problem

If your phone connects to the 5 GHz frequency during setup, you may notice:

• The Blink Doorbell continuously loops with a spinning circle, when trying to answer it on your phone.
• The Motion or doorbell button press events trigger notifications but never load Live View.
• The Sync Module appears offline even though it’s powered on.

These symptoms almost always indicate that your phone connected to 5 GHz instead of 2.4 GHz during setup.

💡 Pro Tip: The 30-Foot Fix

If your phone keeps defaulting to 5 GHz, don’t waste time disabling bands or creating separate guest networks. Just use distance.

Walk about 30 feet away from your eero router before starting the Blink setup.

At that distance, your phone’s WiFi signal will weaken and automatically switch to the 2.4 GHz band.

⚠️ Important: Stay away from the router until the entire setup is finished. If you move closer too soon, your phone may reconnect to 5 GHz and interrupt the installation.

Step-by-Step Installation Guide

1. Verify your eero network is stable and the Sync Module is plugged in but not yet added in the Blink app.
2. Move approximately 30 feet from your router to ensure your phone connects on 2.4 GHz.
3. Open the Blink app and add the Sync Module first. Follow the on-screen instructions until the module connects successfully.
4. Next, add the Blink Doorbell using the same 2.4 GHz connection.
5. Wait for both devices to appear online in the Blink app.
6. Test Live View and confirm motion detection and doorbell press events display properly.

Once setup is complete, you can move freely around your home; the system will operate normally under eero’s automatic dual-band management.

Confirming Local Storage and Events

When installation succeeds, the Blink Doorbell and Sync Module store motion and ring events locally on the Sync Module’s USB drive.

You’ll notice that Live View loads instantly and “System Busy” or “Try Again” errors disappear.

Troubleshooting Tips

• If setup fails, ensure your phone’s WiFi remains on 2.4 GHz throughout.
• Restart the Blink app and repeat the setup 25–30 feet from the router.
• Confirm eero shows the Sync Module as active in its device list.
• Enable Bluetooth and location services during installation; both assist with device detection.

Conclusion

Dual-band routers like eero make home networking easier, but Blink devices still depend on 2.4 GHz during setup. By simply moving about 30 feet from your router before starting the install, you can avoid endless connection loops and complete your installation smoothly.

Once the setup is complete, Blink products can operate normally within a dual-band environment, but getting through installation requires a deliberate 2.4 GHz phone connection.