I have an AX5400 (AX73) router.

And I have a RE505X repeater.

Because the distance between my router and repeater is too far, the connection cannot be stable.

So my problem is that if I used a cable at the ethernet port 1 input, and this cable I ran inside the wall, and then the output I plugged into the repeater's ethernet port, would it be a OneMesh ?

Or just OneMesh is wifi only for repeater ?
And if possible, please give me instructions on how to do this.

Thank you.