Boost will not connect to new Asus RT AX-88U router

My boost is connected to the router and can only be seen by devices on the 5G network.

The move can only be seen on the 2.4 network 

So I cannot access all at once from the same controller, in my case, ipad, at the same time.

Earlier in your posts @Drewmyster you mentioned you had ‘disabled’ your 5Ghz WiFi band - did that not solve the issue, as all would then run on the 2.4Ghz band? It sounds to me however that @ratty hit the nail on the head here, when he said some routers don’t correctly forward discovery multicasts/broadcasts between network segments.. it sounds like this Asus router is one of those.

I noticed too, In one of the linked threads mentioned earlier, that @GuitarSuperstar mentions this…

"Is Smart Connect enabled on your router?” 

I’m guessing here, but I think he was suggesting that router feature needs to be ‘off’, but perhaps try it ‘on’ and ‘off’ to see if that setting might make a difference.

It sounds like a multicast/broadcast discovery issue to me and one that Asus perhaps needs to solve, I think. 

You are correct, I disabled the the 5G network by turning on the radio portion. This I assume only prevents the transmission and receiving of this frequency. When I did this, I could connect all my components except the Sonos boost. When i connected the boost, all components disappeared with the exception of the Sonos move.

As for the smart connect, when this was enabled, all I could see on my iPad was the Sonos move. With smart connect, I am not able to see which network I actually am on. The router simply assigned things. 
 

The only way I can see all components is by having my iPad connected to a specific network, so when connected to the 2.4 network, I could only see the Sonos move. When connected to the 5G network I could see the boost, play bar, sub and Sonos 1. 
 

I cannot connect to all the components on on network which results in not being able to stream the same music to all my components throughout my home.

Hopefully that makes sense. 
 

Yes it makes sense - it sounds like multicast/discovery of devices are just working on the separate network segments, but the packets are not passing between the segments - I can think of a way to perhaps solve it, but it means running all or your Sonos products on your routers 2.4Ghz band and set aside the Boost. Here’s my suggestion…

At your own risk …What you could do, is switch off the ‘Smart Connect’ feature and rename the 5Ghz band. So if your SSID is named ‘localnetwork’ (just as an example). Then simply rename the 5Ghz band by adding -5G to the SSID name, so that it becomes ‘localnetwork-5G’. Leave the 2.4Ghz band named ‘localnetwork’.

Then ensure the 2.4Ghz band SSID (localnetwork) is the only network SSID listed in the Sonos App in ‘Settings/System/Network/Manage Networks’ area .. all should then run on your routers 2.4Ghz band only and if you connect your mobile controller to that band you should then see all your devices.

Then if you want other (non-Sonos) network devices to use the 5Ghz band, you can go onto move those over to the ‘localnetwork-5G’ band.

…But.. personally speaking, I think Asus should be the ones to fix this issue with their router firmware.

Thank Ken, that’s pretty much what I have been doing. 

im reluctant to scrap the Sonos boost because it keeps all components with the exception of the move on the same band. Prior to the boost being installed I had issues whereby a comment would disconnect and switch bands. That resulted in me potentially having the playbar on one band and the sub on another. The boost keeps everything on one band with the exception of the move.
 

I could also sell my Canadian version of the Sonos move and buy the US version. Lol

I’ll pick away at this in my spare time. 
 

Thanks for everyone’s input.

Could the router have some kind of port-based VLANs enabled? It would worth checking. If the segments are on different VLANs this will obviously block traffic between segments. 

Worth checking. Thank you sir

Is the router running stock firmware or a third party firmware? 

This Asus router does not support any VLANs

One last check. Note the Move’s IP address on 2.4GHz (in Settings/System/About if you can’t get it elsewhere), and the Boost’s IP when accessed from the 5GHz segment. They should match in the first 3 octets, i.e. A.B.C.X and A.B.C.Y.