@Eladeb 

Thanks for your requesting. Sorry to tell you that there is no option to create different wifi name and password for 2.4GHz and 5GHz. 

To build up the mesh network, the wifi name and password should be the same.

If you want to use the 5GHz only with specific device, you can disable 2.4GHz first and connect them to 5GHz and disable mesh technology, after that, turn on 2.4GHz to give it a go. You can do the same for the fixed device, like TV, desktop or so. 

Or you can enable guest network 2.4GHz and disable host 2.4GHz wifi to satisfy your needs. Per you know, the guest network and host network are separate from each other in router mode, while they can access each other in AP mode now. 

May it help. 

@Kevin_Z 

Hi,

Mesh system can mesh 2.4 and 5 ghz separately.

The thing is the ssid.

I have 30 devices connected at 2.4 and i need to go to every device and change it separately to meet 5 ssid?

What you suggested is not a solution since if there an power outage the 2.4 or 5 will mixed again.

Or what if i want to join a new device under 5ghz a week later.

Had ddwrt before and mesh worked separately just fine.

@Eladeb 

Hello, yes, you are right, they can mesh between different wifi networks and different nodes. The SSID is the same. 

If you want to connect specific device to 2.4GHz or 5GHz only, per I mentioned before, you can connect to it first and then disable the mesh technology. 

For your information, the Mesh Technology option is the switch for 802.11k/v. With this feature enabled, the client can seamlessly switch to the Deco node that provides the fastest speed as you move around. Disable this feature only when you want to turn off seamless roaming between Decos for this client. After this option is disabled, roaming can only be initiated by the clients themselves.

So with mesh technology feature turned off, the Deco won't suggest clients to roam. Therefore we can use it to satisfy your needs. 

May it help. 

Is it possible in AP mode, to run the mesh as normal and the guest with a separate ssid and only in 2.4Ghz in order to have the equipments connected that can do only 2.4ghz ?

is that possible with the DECO line?

@Eladeb You can use guest wifi to connect 5g.