[redeggs]

I have a Dell Studio 1555 laptop with Windows 7 Home Premium that I've owned for just over two years.

Last night, after a couple of hours using the internet, the connection stopped. The wireless router still had an 'Excellent' signal, but it also said I had no internet access. All of the other wireless devices in my house connect to the internet perfectly, including when right next to the laptop.

I've tried disabling the firewall and resetting the computer a few times, but nothing seems to pick up the internet access. The troubleshooting guide tells me that it is a problem with the wireless modem, but quite obviously that isn't true.

I haven't installed anything on the computer for several months, and I have already ran a full virus check. Can anyone help me? Thank you in advance!

[Miikae99]

[I used your other "hijack" to start your own thread. Please continue here. Thanks for understanding. TerryNet]

[TerryNet]

Can you successfully connect by ethernet?

Please attach a screen shot of the Networks page (don't collapse the Radar, Connection or Signal History) of the Xirrus Wi-Fi Inspector. If you need help with that see TSG Posting a Screenshot. FWIW to take screen shots with Windows 7 or Vista I prefer to use the built-in Snipping Tool.

Also show ...

Open a (black) Command Prompt window:
Hold the Windows logo key and press r; in the Run box type cmd and click on OK.

Type the following command:

IPCONFIG /ALL

[Note that there is no space between the slash and ALL.]

Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If necessary use a text file and removable media to copy the results to a computer with internet access.

[redeggs]

Ethernet connection does not work, which does seem to suggest an internal problem.

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\Richard>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Richard-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : cable.virginmedia.net
Wireless LAN adapter Wireless Network Connection 2:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : 0C-60-76-66-3F-AB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Wireless LAN adapter Wireless Network Connection:
Connection-specific DNS Suffix . : cable.virginmedia.net
Description . . . . . . . . . . . : Dell Wireless 1397 WLAN Mini-Card
Physical Address. . . . . . . . . : 0C-60-76-66-3F-AB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::ecd6:e019:6c2a:9109%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.166(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 19 August 2012 13:51:35
Lease Expires . . . . . . . . . . : 26 August 2012 13:51:40
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 202137718
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-B4-F1-A7-00-26-B9-14-9C-98
DNS Servers . . . . . . . . . . . : 194.168.4.100
192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : cable.virginmedia.net
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 00-26-B9-14-9C-98
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 12:
Media State . . . . . . . . . . . : Media disconnected
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
Tunnel adapter Local Area Connection* 15:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : cable.virginmedia.net
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter isatap.{46DF4B0D-5E58-4EF0-94A3-2250B97B5534}:
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
C:\Users\Richard>

[TerryNet]

What firewall or security suite do, or did you ever, have on the system?

TCP/IP stack repair options for use with Vista or 7.

Start - All Programs - Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

Reboot the machine.