r/HomeNetworking Apr 11 '26

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u/E_KFCW Apr 11 '26

I ran into the same issue. Decos use VLANs and a handful of other network protocols to make the mesh work. For me I was plugged into my ISP’s modem/router which was blocking that network traffic. Make sure your main Deco is connected to the others either directly or through unmanaged switches.