Computer limited to 4Mb/s using gigabit ethernet.

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golden3ye

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Jun 26, 2011
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18,510
I have a bizarre problem.

I have two computers, a gaming pc running win 7, and a media center pc running win 8.1

The gaming pc when hooked up directly to my modem speedtests at 50 Mb/s. Then I use the same Ethernet cord and restart the modem and hook up my media center it speed tests at 4 Mb/s.

Also, I have a wireless N adapter that when plugged into my gaming PC it speed tests at 50, and in the media center again around 4 Mb/s. The media center is right next to the wireless router so I doubt signal strength is the culprit in this particular scenario.

I went to gigabyte's website, the manufacturer of my MoBo, and downloaded the LAN drivers. I then went to device manager and uninstalled my LAN drivers. Then I installed the drivers I just downloaded. And VIOLA, my media center is speedtesting at 50 Mb/s. I pop in the wireless adapter to see if it is also going to test at 50 and nope it tests at 4. Then I take it out and test it again on LAN, and boom back to 4 Mb/s. I restart the computer still at 4 on LAN.

Then I repeat the process of installing the drivers and back to 50 Mb/s. I restart the computer and upon restart it is back to testing at 4 Mb/s.


I am so stumped on what is causing this and I have spent so many hours googling and trying random stuff that I am about to pull my hair out. If anyone could offer some insight I would be so appreciative.

Thanks
 
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golden3ye

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Jun 26, 2011
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18,510


Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Users\Golden3ye.MediaCenter>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : MediaCenter
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 74-D4-35-9D-BB-B0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::9e1:a888:4d47:42b5%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.126(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, August 1, 2014 1:37:16 PM
Lease Expires . . . . . . . . . . : Saturday, August 2, 2014 10:58:36 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 91542581
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-1F-ED-4C-74-D4-35-9D-BB-B0

DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{18A1DDAC-9D2F-4743-816C-CD6224F0D547}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6ab8:2069:1c27:3f57:fe81(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::2069:1c27:3f57:fe81%4(Preferred)
Default Gateway . . . . . . . . . : ::
DHCPv6 IAID . . . . . . . . . . . : 134217728
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-1F-ED-4C-74-D4-35-9D-BB-B0

NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Golden3ye.MediaCenter>
 
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