WLan dead after installin Service Pack 2

[Matt]

Hello!

I own a Dell Inspiron 8200 Notebook with a build-in
truemobile 1150 miniPCI WLAN card and use a SMC 7004AWBR
Router as access point. On the notebook, I use Windows XP
and have the latest drivers for the WLAN miniPCI card,

Until yesterday, my WLAN (using a WEP128 encryption) worked
perfectly with Windows XP (SP1). But then I installed
Windows XP SP 2. Since then, my WLAN is not working
anymore!

The Notebook can find the WLAN accesspoint and receives the
SSID. But when I try to connect to the WLAN, the Notebook
does not receive its IP-Address, the Subnetmask or any
other information by the DHCP-Server in the router. Even
when I enter this information manually, I still can not
connect to my network.

I tried to connect to the Wlan with WEP-Protection ON and
OFF, both times with no success.

Another interesting point is, that every time Windows XP
SP2 searches for the IP/Subnet/... my connections speed
drops to 2 MBit. That never happened before. Normally it is
11 MBit. I can see, that Windows XP sends packets, but does
not receive any.

Is this a "common problem" with the truemobile 1150 and
Windows XP SP2, or do only I have this problem?

Any ideas what could be the reason for this problem?

 

[Carey Frisch [MVP]]

How to troubleshoot wireless network connections in Windows XP Service Pack 2
http://support.microsoft.com/default.aspx?scid=kb;en-us;870702&Product=windowsxpsp2

--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User

Be Smart! Protect Your PC!
http://www.microsoft.com/athome/security/protect/default.aspx

---------------------------------------------------------------------------------------

:

| Hello!
|
| I own a Dell Inspiron 8200 Notebook with a build-in
| truemobile 1150 miniPCI WLAN card and use a SMC 7004AWBR
| Router as access point. On the notebook, I use Windows XP
| and have the latest drivers for the WLAN miniPCI card,
|
| Until yesterday, my WLAN (using a WEP128 encryption) worked
| perfectly with Windows XP (SP1). But then I installed
| Windows XP SP 2. Since then, my WLAN is not working
| anymore!
|
| The Notebook can find the WLAN accesspoint and receives the
| SSID. But when I try to connect to the WLAN, the Notebook
| does not receive its IP-Address, the Subnetmask or any
| other information by the DHCP-Server in the router. Even
| when I enter this information manually, I still can not
| connect to my network.
|
| I tried to connect to the Wlan with WEP-Protection ON and
| OFF, both times with no success.
|
| Another interesting point is, that every time Windows XP
| SP2 searches for the IP/Subnet/... my connections speed
| drops to 2 MBit. That never happened before. Normally it is
| 11 MBit. I can see, that Windows XP sends packets, but does
| not receive any.
|
| Is this a "common problem" with the truemobile 1150 and
| Windows XP SP2, or do only I have this problem?
|
| Any ideas what could be the reason for this problem?