Help to configure sharing Hard Drive on network?

Hi Guys.

Ok hopefully one of you can help here.

I have just got a d link DIR-1960 | AC1900 Smart Mesh Wi-Fi Router which I have set up as an access point in the games room so my children can play xbox playstation ETC & it works fantastic.

Our isp is bt total broadband and in the house we have the black wifi disks the game room is a separate building away from the house which has a wired cat6 network cable to it & we get around 490 to 515mbps the same as we get to wired devices in the house wifi with the disks we get around 380 to 450mbps on wifi in the games room with the mesh router its around the same but more stable for the gaming consoles. we did try a wifi disk but even though the speeds were there they would occasionally cause the game to lag funny it was always when my son was about to score the winner in the World Cup or champions league on Fifa. since we installed the mesh router there have been 0 issues with this so all in all its working perfectly.

To have this as an access point on the network I have changed the IP address of the router from the default to one which doesn’t interfere with any others on the network & it works perfectly & I can connect remotely to another Mac I have down there which I use an a local media server if I were to set this up as a separate network not an access point I would not be able to connect remotely to it.

The router also has the feature to share a hard drive on the network as it has a USB 3 port on it & I have connected a hard drive to this.

I can see the hard drive is connected in the settings of the router & I can set it up with 3 different connections UPnP, Samba & ftp. (see pic 1)

UPnP has a name for UPnP media server

Samba it activated

FTP is activated

I can’t connect to it at all no matter what I try

smb:// 192.***.*.**

or ftp://192.***63

using connect to server in finder smb attempts to connect to server but then fails with message (see pic2)

when I try ftp it at least gives me option to sign in as a registered user which does try but again this fails the log in box wobbles when it fails.

Any of you guys with a bit more knowledge of networking or how to use these protocols I would greatly appreciate any help or advice with this.

Thank you in advance.