So you have a wireguard server.
AX3000 (pls tell the exact models, maybe MT3000?) is connected to the Wireguard Server.
Your computer is also connected to the Wireguard Server from another network.
You want to access your HP server behind MT3000?
First, routing on your Wireguard server
On your Wiregaurd server you need to enable clients to access each other and set up routing to your LAN behind MT3000.
See Building a Site-2-Site network manually using two GL.iNet routers(SDK 4.X) Step 9. Although it is your own server, you should try to do same routings.
Second, auto detect routing on MT3000
See Building a Site-2-Site network manually using two GL.iNet routers(SDK 4.X) step 7.