Inter SSID Traffic not Routing on a RT-AX86U Pro

[dickeypjeep]

I have a RT-AX86U Pro, and I have two separate SSIDs: one on 5GHz, one on 2.4GHz. I had to do this because of a sprinkler controller (Rachio) that doesn't work well with the shared 5/2.4 SSID configuration.

The problem I'm having is that hosts on the 2.4G SSID can't talk to hosts on the 5GHz SSID. My DNS server is a wireless pi-hole, and anything on the 2.4 GHz can't use it for DNS resolution. I've done some troubleshooting and it appears that there's no layer 2 traffic at all between the SSIDs (arps don't resolve.)

Anything going onto the ethernet/wire is fine (except it doesn't get DNS resolution locally, but its fine if I point to a public DNS).

I can't seem to find a setting to enable this traffic or figure out if its even possible. I would think it is since wired hosts can get to hosts on the wireless, but maybe this router just can't go wireless to wireless? I'm stumped!

TIA for any suggestions.

 

[bennor]

What firmware are you running on the router?
Are the WiFi clients on Guest Network (or Guest Network Pro) or the main WiFi?

 

[bbunge]

Which firmware?
Per chance did you set up the 2.4 GHz SSID on a guest network?

A work around for your sprinkler is to use the Dual Band SmartConnect with the same SSID for the 2.4 and 5 GHz then set up a different SSID on a guest network on 2.4 GHz for the sprinkler.

 

[bbunge]

Is there an echo here???

 

[Justinh]

I I don't don't hear hear an an echo echo.