Ar 750s slow speed on cable

Hi, bought a new ar 750s and something wrong with it…

Was using a mt300n v2 and speeds were way better with cable than with the ar 750s…

Using wireguard I’m getting 40mbs wireless and with cable getting between 10 and 15mbs…

Not cable problems because already tested them…

Updated to snapshot firmware and still getting same speeds…

Do you mean cable to cable, without wireguard you only get 10-15Mbps?

Using wiregard. With cable. Using wifi getting 45mbs.

Cable is ok. Tried several, allways same result.