Two computers wired to the same router, one has twice the download speed. Why?

maroonezra

Prominent
Sep 12, 2017
3
0
510
I recently got a 1 Gig fiber connection through AT&T. My wife and I have separate desktops within 5 feet of each other. Each computer has a network card that should be able to handle 1 Gig and are connected to the same router supplied by AT&T. My card is a Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller located on an ASUS Rampage Formula motherboard.

I write this because my wife is getting over 900Mbps up and down where I "only" get 450 Mbps down and around 550 up. I realize I have more than enough speed for anything I could possibly want, but I at least need a reason so I can try and solve it.

I've tried Cat 5e and Cat 6 cable. My NIC is set to Auto Negotiation. I've tried both ports (I have two Ethernet ports) I don't have AMD anything, so that one thing with AMD can be ruled out. I'm truly stumped. I'm going to see if I can't get my hands on another network card (newer) and see what that can do.
 
Solution
A network interface (I would recommend an Intel based card) with an up to date Windows 10 driver, would probably fix your "slowdown" -- Most people here wouldn't call 400+ Mbit a slowdown and probably wouldn't spend any money to fix it. I would agree. 400+ Mbit should be enough for anything except cloud backup of 100s of GB.

kanewolf

Titan
Moderator
Your hardware is pretty old. What OS are you running? If it is Windows 10, then you are using a standard driver, since Marvell has never released a Windows 10 driver. It could just be inefficiencies or it could be a hardware limitation of your PC.
 

maroonezra

Prominent
Sep 12, 2017
3
0
510


Howdy,

Yes, it is Windows 10 and yes my hardware is 9 years old or so at this point. A new one is on the horizon, but likely not for a year or so. Would you think that a new Net Card could fix this rather easily, or is there more to it than that?
 

kanewolf

Titan
Moderator
A network interface (I would recommend an Intel based card) with an up to date Windows 10 driver, would probably fix your "slowdown" -- Most people here wouldn't call 400+ Mbit a slowdown and probably wouldn't spend any money to fix it. I would agree. 400+ Mbit should be enough for anything except cloud backup of 100s of GB.
 
Solution

maroonezra

Prominent
Sep 12, 2017
3
0
510
I agree that I don't need any more speed, it's just one of those things that I needed to figure out. That said, if I could fix it for $10-$20 with a new net card I likely would. The Intel ones seem to cost a bit more, so I'll just hold off until I build again.