@Woffe Thank you for testing 🙏 that's great it's connected to M9, but makes my problem even more confusing, the only thing I can think of now is that perhaps some Dot4 came out with different...

Woffe wrote @Blotch Hi, i use 2 Echo Dot 4 and there is no connection issue. I use 2x M9 Plus (V2) and 1x M5 (V3) It works like all other Wifi Devices. So there is no general problem with Deco an the...

@Graeme_E Graeme_E wrote @Blotch Success. I checked the hardware versions of my M5's and had 3 x V1 and 1 x V3. I then made the V3 the main deco and it worked. Pleased you managed to get it working 👍

@Graeme_E Agree it's incompatible with Deco mesh (both M5 & M9). I gave up and sent both Dot 4s back in the end. Question is whether it's a problem with Dot firmware or Deco firmware! I've asked...

I've just purchased a new Amazon Echo Dot 4 to add to my existing smart home (I already have Echo 8, Dot Ver 1, 2 & 3 that all work perfectly). However during setup the new Dot 4 refuses to connect...