Try to configure my cloud ex2 ultra with domain servers + switches

So my problem is that we have client server network architecture in 172.16.4.x range , i want to connect my cloud to system thru switch to be accessable to all computers

But when i try to assign static ip online it stucks at updating & when i try to enter again i find it back to dhcp

Is it possible to connect my cloud directly to switch not routet !?
How to assign static 172.16.4.x ip range to it !?

Thanks in advance

@Moo93 If you own a My Cloud EX2 you may find some help in the correct sub-forum for that device or check the Knowledge Base.