@iansmcdonald 

Do you have access to Deco app? Deco mesh is managed by Deco app. If you do not have login credentials to login to Deco app and see your Deco mesh, there is not much you can do.

  @Alexandre. 
"Do you have access to Deco app? Deco mesh is managed by Deco app. If you do not have login credentials to login to Deco app and see your Deco mesh, there is not much you can do."

Yes I do, no problem.

There is no option to do anything like port forwarding or dhcp ip address allocation.
That's my problem.

 

  @iansmcdonald 

You can configure static IP addresses in Deco mesh, here is how: How to configure Address Reservation on a Deco

Remove static IP address setup on devices, they should be requesting IP address from Deco where you reserved it. Device with static IP configured on it may become invisible to Deco and could cause IP conflicts in the future.

There is also method to configure port forwarding. Just look around for documentation on that topic, but this feature is present.

Unfortunately, Deco mesh does not offer DMZ.

  @iansmcdonald You can set the DHCP range via the app: More, Advanced, DHCP Server.

If you want to configure the DHCP to assign static IP addresses to some clients, be aware that the Deco app will only accept assigning static IP addresses from the DHCP pool.

It is possible, after those static IP are assigned, to modify the range of the DHCP pool.