Wifi pro AP isolation with nest audio and pixel 6

[Costas_Zeb]

Hello I am having an issue with adding my new nest audio, to my google home

My set up is, a pixel 6, a nest wifi pro and a nest audio, so yes I like google products

I got a nest audio, activated it via the device utility app, then started to add it my google home. The installation worked up to the end until the app said that 

I have one wifi network, so they are in the same network and both devices can be found in my wifi pro

But my phone can't find nest audio

I have tested every post, guide, video I found

UPnP is enabled, I have pin the IPs but no luck

My phone is on 6Ghz and nest audio is on 5GHz

What is the problem?

Thanks