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Win 7 desktop cannot connect, but laptop can...

This is a discussion on Win 7 desktop cannot connect, but laptop can... within the Modems/Cable/DSL/Satellite forums, part of the Tech Support Forum category. Comcast cable , 25 Mbs package. Motorolla modem , TP-Link router . Neither has wifi built in; no wifi on


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Old 06-14-2016, 09:34 AM   #1
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Join Date: Apr 2005
Posts: 43
OS: Windows 7



Comcast cable, 25 Mbs package.
Motorolla modem, TP-Link router. Neither has wifi built in; no wifi on this setup, just ethernet cables.
Desktop -- Windows 7, "MB ASROCK|990FX KILLER ATX R Configurator" motherboard (can't even link to it on Newegg, as they apparently stopped selling it). It has the "Killer e220" ethernet controller. This desktop is barely over a year old, and only gets occasional use.
Laptop -- Windows 8 Acer Aspire v17 Nitro
I have 2 different ethernet cables.

The problem:

Sunday night I was running internet into my laptop, and then into my TV via HDMI cable. At the same time I was gaming on my desktop. (both hooked up to the router) Everything seemed fine.

The next day, the desktop wasn't getting internet.

I removed the router, and hooked the desktop directly to the modem.

I disconnected/reset the modem. Only some websites would load. More secure sites, like PayPal or my business shopping cart, will not load. (However some of the sites that do load still have the "https" secure address) This site will not load on the desktop.

However my laptop still got internet, after resetting the modem again and hooking it up.

Tried both ethernet cables on the desktop, still would not load most sites.

Talked w/ Comcast, they ran tests, claimed everything was fine from their end, I was getting a signal etc, but they would send someone today. (Also had me reset Firefox. I also used CCleaner to clear all temp files). Still limited connectivity / only some pages would load, most would time out.

Last night I decided to uninstall the "Killer Network Manager," and install just the ethernet driver directly from the motherboard disk. After that, my desktop seemed able to load every webpage, no problem.

Woke up this morning, and AGAIN the desktop will not load most pages, limited connectivity, etc. Device manager says the Killer e220 is "working properly."

The Comcast guy arrives, says I'm getting no internet signal. (then how was I getting internet last night just fine, and still on the laptop just fine?) He went outside, said a cable was disconnected. Came back in, said signal was fine.

And here I am, typing this on my laptop, because my desktop still will not load pages. As of now, it has the yellow triangle / exclamation mark over the network icon in the task manager. That desktop is a business computer. It's needed to fill orders. I now may have to leave this laptop here for my employees to run the business just cause it can't open most pages (I have to fly out in a few days).

Why can't I load most web pages?
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Old 06-14-2016, 09:36 AM   #2
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OS: Windows 7



ps. under "Network and Sharing Center," there is a red "X" ont he top diagram, between "Multiple networks" and "Internet."
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Old 06-14-2016, 09:41 AM   #3
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OS: Windows 7



ps. I have Avast running on the desktop, and windows firewall

I tried stopping Avast shield control, but that didn't seem to help
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Old 06-14-2016, 09:46 AM   #4
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Posts: 43
OS: Windows 7



Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig /all

Windows IP Configuration

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

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Killer e2200 PCI-E Gigabit Ethernet Contr
oller (NDIS 6.20)
Physical Address. . . . . . . . . : D0-50-99-87-69-7F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::ccc9:15bf:ed46:6ccd%16(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.100(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Tuesday, June 14, 2016 11:54:51 AM
Lease Expires . . . . . . . . . . : Tuesday, June 14, 2016 1:54:50 PM
Default Gateway . . . . . . . . . : 0.0.0.0
192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 332419225
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-0B-9D-81-D0-50-99-87-69-7F

DNS Servers . . . . . . . . . . . : 75.75.76.76
75.75.75.75
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{6700C286-F0E4-4B08-9CB9-F67BC7A3949E}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Windows\system32>
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Old 06-14-2016, 11:37 AM   #5
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Actually I was directed to install the latest drivers. I did that, and it SEEMS to have fixed it!
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