Adding a New Server at Remote Site

I need to Replace a Dead Server at a Remote Site

Both sites have a 100/100 Leased Line

Site to Site VPN is configured at Router Level

The old server died and we have got new Server.

Setup as workstation then joined to the domain

(Previous IT manager setup the Domain the Remote site Server)

Can loging etc but I can't create shares

From the Mainsite server I've added the new server in the list

but I can't see the Server from the Mainsite to setup Shares

Server list says "in progress" under manageability

Just thought of this whilst writing this:

Do I need to do this at the Main site where the DC is located???

Have domain joined PC/NB's at the Remote Site and we can use the computers normally.

The main site 250miles away

Any ideas would be appreciated