WD Elements not showing in my network

I just bought a WD Elements a few days ago, connected it in back of my router and configured it but it doesn’t even show or connect to it and get a message saying " windows cant connect to the IP address".
Please help. Thank you

You need to provide a lot more information.

What is the Maximum Capacity HDD that your Router Supports ?

What Filesystem Format HDD does your Router Support ?

What Partition Table HDD does your Router Support ?

What Brand / Model is your Router ?

What Capacity WD Elements did you buy ?