It’s absolutely possible. It’s not that you’re using a third-party router, but rather the one you’r using may be too slow. I ran into this personally – I had a Netgear R7900 that wouldn’t get anywhere near the gigabit speeds I was paying for. Connected directly to the ISP’s fiber ONT, I got the full 940 up and down. Connected through my Netgear router, I’d get maybe 330 maximum using the same Ethernet cables.
Factory resetting it would fix it for a few hours, then it would slow down again. QoS was switched off. Finally, replacing the router with an Asus RT-AC86U completely solved the problem for me. That was a few years ago, so I’m sure there’s better stuff out there now, but this one keeps right on trucking. (And I’m like you, I only use wireless when I have to. Everything that can be wired, is.)
One other thing that was slowing me down a bit: the little Anker Thunderbolt dock I use to connect my laptop couldn’t really do the full gigabit. It’d top out at maybe 650 Mbit. Mostly adequate, but it was definitely slowing down my laptop. I doubt that’s your issue as slow as you’re seeing, but something else to check on.
It’s absolutely possible. It’s not that you’re using a third-party router, but rather the one you’r using may be too slow. I ran into this personally – I had a Netgear R7900 that wouldn’t get anywhere near the gigabit speeds I was paying for. Connected directly to the ISP’s fiber ONT, I got the full 940 up and down. Connected through my Netgear router, I’d get maybe 330 maximum using the same Ethernet cables.
Factory resetting it would fix it for a few hours, then it would slow down again. QoS was switched off. Finally, replacing the router with an Asus RT-AC86U completely solved the problem for me. That was a few years ago, so I’m sure there’s better stuff out there now, but this one keeps right on trucking. (And I’m like you, I only use wireless when I have to. Everything that can be wired, is.)
One other thing that was slowing me down a bit: the little Anker Thunderbolt dock I use to connect my laptop couldn’t really do the full gigabit. It’d top out at maybe 650 Mbit. Mostly adequate, but it was definitely slowing down my laptop. I doubt that’s your issue as slow as you’re seeing, but something else to check on.