Internet Randomly Disconnects

I'm going to try and be as thorough as possible so you don't have any extra questions so bear with me. I have been having trouble surfing the web for a while now because my internet keeps disconnecting. The thing is, is that my internet never actually says it has disconnected, it just won't open any webpages. Sometimes this happens consistently for a period of time, but more often than not it happens every three or four webpages.

- My OS is Windows 7 64
- It happens on both wired and wireless internet connections
- It happens on every web browser (Firefox, Chrome, Internet Explorer)

- I've done a clean install of every networking device without any success

- My IPv6 Internet Connectivity says "No Network Access" for my wired connection
- My IPv6 Internet Connectivity says "Not Internet Access" for my wireless connection
- I've disabled IPv6 with no change

- My wireless card is a DW1520 Wireless-N WLAN Half-Mini Card

Any idea what my problem is and/or how I might be able to fix it?

 

What about the rest of network setup- modem and/or router? What kind of connection is if ADSL or cable?

It's most likely an issue of that part of you setup- not computers or LAN part- but WAN part i.e. line quality is poor and modem is disconnecting or there are some issues with router/modem.

 

It happens on a variety of networks (Home, Work, University). Could it be a problem with my wireless card? It is a refurbished Dell computer and just about everything else has been replaced.

 

If the problem happens wired as well, the issue is not with your wireless adapter. The fact that it happens on every network seems to point to a configuration issue or some nasty malware that was made to annoy you (i doubt it's the latter, but doesn't hurt to check).

As to what settings it is, it's difficult to say.

 

I do regular virus scans so that's (most likely) out of the question. What exactly do you mean by a configuration issue? I'm not really much of a tech guy, sorry.

 

How long has this problem been present. You should also use malwarebytes. the free version to look for malware. A virus scan by itself is not enough protection.
1: What antivirus software are you using. Some antivirus software can cause problems.
2: Click the start button then type in cmd. Click on the cmd in the drop down. Type in ipconfig /all and hit enter. Post the results here.

 

Do you use a third party firewall?

 

1) I use Microsoft Security Essentials
2) I use Malwarebytes Anti-Malware
3) I use the Windows Firewall

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

C:\Users\Command Uplink>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Uplink
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : tulane.edu

Wireless LAN adapter Wireless Network Connection 5:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
4
Physical Address. . . . . . . . . : C0-CB-38-4C-68-96
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : tulane.edu
Description . . . . . . . . . . . : DW1520 Wireless-N WLAN Half-Mini Card
Physical Address. . . . . . . . . : C0-CB-38-4C-68-96
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 129.81.71.144(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.192
Lease Obtained. . . . . . . . . . : Saturday, October 01, 2011 1:41:49 PM
Lease Expires . . . . . . . . . . : Sunday, October 09, 2011 4:46:00 PM
Default Gateway . . . . . . . . . : 129.81.71.129
DHCP Server . . . . . . . . . . . : 129.81.16.5
DNS Servers . . . . . . . . . . . : 129.81.16.21
129.81.224.50
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom Virtual Wireless Adapter
Physical Address. . . . . . . . . : C0-CB-38-4C-68-96
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 70-F1-A1-B8-09-0F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : tulane.edu
Description . . . . . . . . . . . : Intel(R) 82577LC Gigabit Network Connecti
on
Physical Address. . . . . . . . . : 84-2B-2B-81-50-FC
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 129.81.71.178(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.192
Lease Obtained. . . . . . . . . . : Thursday, September 29, 2011 3:42:01 PM
Lease Expires . . . . . . . . . . : Sunday, October 09, 2011 11:35:08 AM
Default Gateway . . . . . . . . . : 129.81.71.129
DHCP Server . . . . . . . . . . . : 129.81.16.5
DNS Servers . . . . . . . . . . . : 129.81.16.21
129.81.224.50
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{7CAE9B65-774A-4358-9FF1-04C26DCDB42E}:

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 isatap.{B24DF1FA-8C2E-4A1E-B145-232C34AF7BED}:

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

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . : tulane.edu
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:8151:4790::8151:4790(Preferred)
IPv6 Address. . . . . . . . . . . : 2002:8151:47b2::8151:47b2(Preferred)
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 129.81.16.21
129.81.224.50
NetBIOS over Tcpip. . . . . . . . : Disabled

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. . . . . . . . . . . : 2001:0:4137:9e76:28aa:1f02:7eae:b86f(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::28aa:1f02:7eae:b86f%15(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{A2991F82-D05D-4192-AED4-BF6BA500A452}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.tulane.edu:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : tulane.edu
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{E394CF7F-3E46-4BF7-9D41-DAAC7AB3AB25}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Command Uplink>

 

I have a random error message whenever I start up my computer although I'm not sure if it is related.

brs.exe - System Error
The program can't start because MSVCR71.dll is missing from your computer. Try reinstalling the program to fix this problem.

I just thought I should add this in case it is relevant.