How to create a Lan between notebook and PC desktop

Hi all, i know that USB tethering has been talked but i could not find exactly as the title says a way to create a lan between my desktop and a notebook in the same room, i tried to activate the wifi hotspot in my android and the USB tethering pluging my android in the PC Desktop, then connected the notebook in the wifi of the smartphone, but the sub network are 192.168.43.xx and 192.168.42.xx so the computers are not in the same Lan, i want to play a game that automatically recognize computers in the same Lan, so is there a way to create a Lan having the material that i have? a pc desktop, an android smartphone and a notebook with wifi? thx in advance

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