@Bugs-Bunny_1958 

Unfortunately, this is a known compatibility issue. Deco's Ethernet backhaul feature uses the IEEE 1905.1 protocol, which may not work properly through certain network devices, including wireless bridges. While your Ubiquity wireless bridge successfully passes regular network traffic (like streaming on your laptop), it may not properly support or pass through the IEEE 1905.1 protocol that Deco units use to establish Ethernet backhaul.

This is similar to compatibility issues we've seen with certain network switches. For example, several D-Link switches are not compatible with Deco's Ethernet backhaul for the same protocol-related reasons, even though they work fine for regular network traffic.

Here are a few things you could try:

1. Check if there's a firmware update for your Ubiquity radios that might improve compatibility
2. Try setting your Deco system to Access Point (AP) mode • this changes how the backhaul protocol operates and might work better through the wireless bridge
3. Consider the placement • since you mentioned getting a weak WiFi signal with garage doors open, if you could position one of your indoor Deco units closer to the garage, it might establish a stronger WiFi backhaul connection

Given the 300-foot distance and metal garage construction, WiFi backhaul alone will likely remain challenging. The wireless bridge approach is creative, but the protocol compatibility issue may prevent it from working as intended with Deco's Ethernet backhaul feature.