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Discussion Starter · #1 ·
Hi,

I have an IBM laptop using Window XP. Since someweeks ago it has often disconnected wifi and I have had to restart it, then it connected to wifi for a while (some minutes or hours) and disconnected again and again.

I followed advices in this forum to go to start-run-cmd-ipconfig/all and received the following message: " An internal error occurred. A device attached to the system is not functioning.

Additional information: unknown media status code."

Start-run-cmd-ping 4.2.2.1: destination host unreachable.
Ping statistics for 4.2.2.1: packet sent=4, received = 0, lost = 4 (100% lost).
Can someone helps me fixing this problem.

Thank you very much.
 

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Ok:So is your real problem that your wifi connection is not stable ?
If so,let's see a couple of things:
Wifi test exe. Hint from Johnwill

Download and run Xirrus Wi-Fi Inspector from
www.xirrus.com/library/wifitools.php
on the problem machine. Post a screen shot of the main screen here.

To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file. To upload it to the forum, open the full reply window and use the Manage Attachments button
to upload it here.

Note that this application requires NET Framework to run. If you get an error about a missing function, download and install NET Framework.
And,try this again when your connection fails:
Start, Run, CMD, OK to open a command prompt:
(For Vista or 7 type CMD in the Search box after Start)

In the command prompt window that opens, type the following command:

Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

IPCONFIG /ALL

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

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

Are there any other pc's on this network having the same issue ?
About the time this started to occur ,anything changed? Hardware/software ?
 

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Discussion Starter · #3 ·
Thank you for your help.

I run Xirrus Wi-Fi Inspector for hours (overnight) but it is still running now and I cannot copy it here (hold the Alt key and press the PrtScn key but nothing happens). Do I need to wait? I do it when the laptop is connected well to wifi.
 

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Ok:Let's do a couple of things.
Change the wireless channel being used(1/6/11)in US.Output from wi fi inspector would show wireless networks around you.Pick a channel that is not well used.
Go to your pc makers web site and see if there are any more curent wireless adapter drivers for your model.
Then let's see ipconfig /all for a working and non-working environment.
 

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Discussion Starter · #7 ·
Output from wifi inspector:
Adapter name: Inter(R) PRO/wireless 2200BG network connection
Network mode: 802.11b/g
Default Encryption: TKIP
Default auth: WPA2/PSK
BSSID: 00:18:4D:81:E2
Frequency: 2437
Network type: Access point

My laptop: IBM ThinkPad T42

ipconfig /all for a working and non-working environment resultsare the same:
" An internal error occurred. A device attached to the system is not functioning. Please contact Microsoft Product support service for further help.

Additional information: unknown media status code."

Can you help me to find problems? Thank so much and A Happy New Year to you.
 

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I would replace the drivers as a start and change the wireless channel.
Other thing you could do is boot up in safe mode with networking,and see if problem persists.
Like so:

http://www.computerhope.com/issues/chsafe.htm#03
Might also be a good idea to do a stack repair.Like so:
Stack repair for XP and Vista.
Courtesy of Johnwill of the Networking forum.

TCP/IP stack repair options for use with Windows Vista.

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

In the command prompt window that opens, type type the following commands:

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.

TCP/IP stack repair options for use with Windows XP with SP2/SP3.

Start, Run, CMD to open a command prompt:

In the command prompt window that opens, type the following netsh commands..

Reset TCP/IP stack to installation defaults, type: netsh int ip reset reset.log

Reset WINSOCK entries to installation defaults, type: netsh winsock reset catalog

Reboot the machine.

And here is some additional info on this particular error msg. with ipconfig /all

http://www.chicagotech.net/troubleshooting/ipconfignotfunction.htm
 

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do you have an external WiFi adapter, like a USB unit? Try disabling the internal unit in the device manager and use an external, just to isolate things. If it does connect with the external, go fetch the latest drivers for your internal device from IBM and try it again.
 

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Discussion Starter · #11 ·
I found somethings wrong with Video controller (VGA compatible) so clicked start-run-regedit and changed letter from I: to C: in HKEY_... Then I did ipconfig all/ again and it seems that the problem fixed. Now just wait and see if wifi connection is stable or not.

Thank Pedroguy and Caribconsult very much for your valuable advices.

I will keep you posted about this issue in the next day.
 

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Discussion Starter · #14 ·
Oh not yet, this morning I used internet and for about a half hour it happened again: instable connection and output of inconfig /all appeared as before. So it starts from the beginning, haiz
 

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Discussion Starter · #16 ·
I think it is ok now. My laptop has two network adapters: 1 is if the manufaturer, the other is Inter(R) Pro/1000 MT mobile connection. I disabled the second one and the wifi connection is now stable (I hope).
 

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Discussion Starter · #17 ·
I thought that it was ok but the next day the wifi comes back to unstable status. I used Trend Micro Internet Security and I noticed that currently the personal firewall automatically switched off even I turned it on and when reopened it was off. So I uninstalled the Trend Micro and looking for another one. Any better antivirus programme you recommend for me?
 

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Discussion Starter · #18 ·
Hi Pedroguy,

Here is output from ipconfig /all when there is no connection at all:

Window IP Configuration

Host name: XXX
Primary Dns Suffix:
Node Type: Hybrid
IP routing enabled: No
WINS Proxy enable: No
DNX Suffix Search List: XXX

Ethernet adapter wireless network connection 2:

Media state: media disconnected

Description: Intel® PRO/wireless 2200BG Network Connection
Physical address: 00-0E-35-F3-A4-AA


When there is limited wifi connection or there is connection but no wiless network found, the output of ipconfig /all is indicated belows:

Host name: XXX
Primary Dns Suffix:
Node Type: Hybrid
IP routing enabled: No
WINS Proxy enable: No
DNX Suffix Search List: XXX

Ethernet adapter wireless network connection 2:

Connection-specific DNS Suffix: XXX
Description: Intel® PRO/wireless 2200BG Network Connection
Physical address: 00-0E-35-F3-A4-AA
Dhcp Enable: yes
Autoconfiguration enable: yes
IP address: 192.168.1.2
Subnet mask: 255.255.255.0
Default Gateway: 192.168.1.1
DHCP server: 192.168.1.1
DNS servers: 192.168.1.1
Lease obtained: Friday, January 07, 2011 8:44:05 PM
Lease expires: Saturday, January 08, 2011 *:39:50 PM

I cannot find the other channel as you mentioned.
 

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Discussion Starter · #19 ·
Hi,

My laptop's wifi connection is stable now. I think I fixed three things and solved the problems: (i) switched off one of the network adapters -the Inter(R) PRO/1000 MT mobile connection in Device Manager; (ii) started wireless zero configuration (in Component service-service) and (iii) fixed internet security (trend micro internet security). Thanks for all advices.
 
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