Installing pi-hole on WD ex2 ( via )

Anyone have the instructions for installing pi-hole on WD ex2 ?

I have a pihole container running in Portainer on the WD EX2…

But I cannot access the pi-hole admin console…

But I think I went wrong somewhere in the Network settings :frowning. Any help appreciated.
I gave the WD EX2 a static IP address ( )
created a network in portainer ( I do not know the ethernet device interface name … should I use the Mac address? should it be mtacvlan/bridged/host ? ).

Anyone have the instructions handy ?