Can't add on-site computer/workstation to domain

I'm currently trying to set-up ADDS for the company i work for. I've followed multiple guides/microsoft Azures documentation, and i've ran into a problem. When i try to add a On-site computer to the ADDS i get two errors (DNS Name does not exist (Error code0x0000232b) & Timeout (Error code 0x000005b4 ERROR_TIMEOUT)).

We don't have anything like this set-up before so this is a first for both the company and myself.

The first error code 0x0000232b occurs when i try to add a workstation to the domain without having anything in the Preferred DNS on the NIC Options.

While i haven't manually inputted anything, i wanted to test some commands through power-shell, the following is the outputs of the commands used:

Ping - Pinging "Domain name" [xx.xxx.xx.xxx] with 32 bytes of data: Request timed out. Ping statistics for xx.xxx.xx.xxx: Packets: Sent = 1, Received = 0, Lost = 1 (100% loss).

Test-netconnection -
Computername : "Domain name"
RemoteAddress : xx.xxx.xx.xxx
InterfaceAlias: Ethernet
SourceAddress : xxx.xxx.x.xxx
PingSucceeded : False
PingReplyDetails (RTT) : 0 ms

When i put the two DNS server IP's manually in the preferred DNS section on the NIC box, nothing works. Websites don't load, any command i try to do also times out, see below for commands and outputs:

Ping - Ping request could not find host "Domain Name". Please check the name and try again.

Test-netconnection -
Computername : "Domain Name"
RemoteAddress : Blank
InterfaceAlias : Blank
SourceAddress : Blank
PingSucceeded : False

On the azure portal, there is a tool that can test the connection providing the connection type and port number, I've tried that and it tells me that a Default_DenyAllInbound is set and blocking it but that is at the bottom of the priority list.

The way i'm trying to join the Domain: File Explorer -> Right Click This PC -> Properties -> Change settings (System Properties) and then change at the bottom of the box.

I know there is another way to add it to the domain through the manage account section (Access Work or School account) but i need the workstation to show up in the GPMC and the Administrative centre on the server, which if i do it the account way, it doesn't show up.