@dobbz 

The error "There was a problem refreshing thumbnail. Try again in a few minutes" on a Blink camera system usually indicates a communication issue between the camera and the Sync Module, or a problem with the camera's connection to Wi-Fi. To fix this, try troubleshooting your Wi-Fi and Sync Module connections, rebooting devices, and ensuring your camera has a clear view of its surroundings. 

Here's a more detailed breakdown of troubleshooting steps:

1. Check Wi-Fi and Sync Module Connections:

• Signal Strength:

Ensure your camera has a strong Wi-Fi signal. You can check the signal strength in the Blink app under "Device Settings" -> "Wi-Fi Information". 

• Placement:

If the signal is weak, try moving the camera closer to the Wi-Fi router or Sync Module. 

• Sync Module:

If you have a Sync Module, ensure it is properly connected to power and Wi-Fi. 

2. Reboot Devices:

• Sync Module: Unplug the Sync Module from power for 30 seconds, then plug it back in.
• Camera: Remove and reinsert the batteries from the camera.
• Router: Power cycle your modem and router by unplugging them for 30 seconds and plugging them back in. 

3. Blink App Updates:

• Check for Updates: Make sure you are using the latest version of the Blink app.
• Reinstall App: As a last resort, uninstall and reinstall the Blink app. 

4. Additional Tips:

• Reset Camera: If the issue persists, you may need to reset the camera. Refer to Blink's documentation for specific instructions on resetting your camera model. 
• Photo Capture: If you have Photo Capture enabled, ensure it's configured correctly and that the system is armed. 
• Support: If none of these steps work, contact Blink support for further assistance. 

  @dobbz 

How is your network set up? If you look at the following post

https://community.tp-link.com/en/home/forum/topic/98898

What is the closest to your set up? Option 1, 2 or 3?

Does your modem broadcast WiFI or is it just an ethernet modem? 

  @dobbz 

I am currently troubleshooting the issue to identify the source of the problem. Specifically, I am evaluating whether the issue stems from your router and modem, the Decos operating in AP mode, or the Blink camera itself. 

If you're willing to assist with some testing, please follow these steps:

1. Unplug all three Decos from power.
2. Access your modem's settings and re-enable broadcast Wi-Fi.
3. After reconnecting, check if the Blink cameras connect to your original router/modem and verify whether the issue persists.

If the "refresh thumbnail" option now functions correctly, we can infer that the Decos may be the cause, since they are disconnected. 

If the option does not work, then the Decos are unlikely to be the source of the problem. In that case, the issue could be with the Blink system itself or with your router/modem.

If the above steps do not resolve the issue, there are additional options to consider. You mentioned that your router is not broadcasting Wi-Fi and that the Decos are currently set to Access Point mode. Since the Decos are in AP mode, certain features are unavailable. Because your modem is not broadcasting Wi-Fi, I recommend opening the Deco app and switching from Access Point mode to Wi-Fi router mode. This should enable all the features you purchased with your Decos. After making this change, please check if it resolves the issues you are experiencing.

If you choose the above option, please ensure that you disable the Wi-Fi broadcast on your modem/router. Otherwise, both your modem/router and the Deco system may broadcast Wi-Fi simultaneously, which could lead to interference.