Slow LAN connection

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phatsnake

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Feb 1, 2011
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This is the equipment I'm using:

Netgear router WNDR3400v2 (DHCP disabled, connected to main modem through the lan port)
AmazonBasics RJ45 Cat5e Ethernet Patch Cable (25 feet)
AmazonBasics RJ45 Cat5e Ethernet Patch Cable (50 Feet/15.2 Meters)
2 short yellow ethernet cables that came with the routers
Arris Modem provided by TMC
Time Warner Cable Ultimate speed 300 mbps
ASRock Z77 Extreme4 with PCIE x1 Gigabit LAN 10/100/1000 Mb/s

Connection scenarios used:

1. Arris > 50 ft cable > computer = 300 mbps
2. Arris > 25 ft cable > computer = 300 mbps
3. Arris > short yellow cable > Netgear > short yellow cable > computer = 300 mbps
4. Arris >50 ft cable > Netgear > 25 ft cable > computer = 40 mbps.

The first 3 scenarios were me testing the equipment to make sure that each one could support 300 mbps. Scenario number 4 is my actual setup, and for whatever reason it's capped at 40 mbps.

I also tried replacing the netgear with TP-LINK TL-WR841N, and I'm aware that this one is only 10/100 but it's still capped at 40 mbps like the other one.

How can I get my main setup to go up to 300 mbps? I'm considering getting a 100 feet cable and just connected it directly from the modem to my computer, but I could use the WiFi provided by my Netgear router. Any ideas?

Thank you in advance!
 
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ronintexas

ronintexas

Judicious
Dec 10, 2012
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A couple of questions - is the Netgear configured to be an access point only? (I see DHCP disabled and connected via LAN port)

Have you tried using a network switch (about $20-$30) instead of the router?

I have a similar setup with TWC in Austin - my ASUS router gave me all kinds of crap with their new Arris modem, and I replaced it with just a network switch and that solved the problem - I still use it for an access point for the far end of the house - but no computers connected via ethernet to it.
 
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phatsnake

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Feb 1, 2011
39
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18,530


No. I just gave the Netgear a static IP and disabled DHCP. I'll check the settings if I can set it to Access Point and I'll get back to you.

Edit: I checked the router setup and I couldn't find an option called Access Point. I looked up how to setup my router as an access point and it suggested the two steps I already took: disable DHCP and connect to LAN.



I did consider it but I decided to stick with the router because I also use its WiFi with other devices like my tablet or smartphone.

Thanks for your reply.
 
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BuddhaSkoota

BuddhaSkoota

Admirable
Aug 16, 2014
1,415
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While Cat 5e is perfectly capable of gigabit speeds at relatively short distances and in low noise environments, you might need to consider upgrading to Cat 6 or Cat 6a, especially if the cables are run close to other cables or electronic equipment.
 
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