Is it wireless connection - if so also past a xirrus screen shot - see below
i would normally suggest some tests - but as its very short - try the following DNS settings (i will put the normal tests below, in case you can try)
------------------------------------------------------------------------ Google public DNS
Google public DNS
http://code.google.com/speed/public-dns/
Theres also a link on how to setup those DNS IP address
http://code.google.com/speed/public-dns/docs/using.html
How to set XP here
http://techie-buzz.com/how-to/google...and-winxp.html
Then once you have set up those DNS entries
Flush & register DNS
Hold the
Windows key and press
R, then type
CMD then press
Enter to open a command prompt box (A new dialogue box - black with white font, will appear
on screen ):
In the command prompt window that opens, type the following commands:
Ipconfig/flushdns
ipconfig/registerdns ------------------------------------------------------------------------
And if you can try the following
would you post the following tests when its working OK and then repeat ALL the tests when it
disconnects and make sure you also tells which tests posted are for what condition
if you are also connected by wireless include the xirrus screen shots
Please post back here the make and exact model of the router and if separate, the make and exact model
of the modem
Also please make a note of the status of the light on the modem and on the router when working normally
- post back here and then when disconnected post the status of the lights here again if changed
------------------------------------------------------------------------ ipconfig /all
If you cannot access the internet with this PC, then you will need to paste the results into something
like notepad and then copy onto a machine that can access the internet and post results here
We would like to see the results from ipconfig /all post back the results in a reply here
Hold the
Windows key and press
R, then type
CMD then press
Enter to open a command prompt box (A new dialogue box - black with white font, will appear
on screen ):
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 > network.txt & network.txt
It will export the results to notepad and then automatically open notepad.
Now all you need to do is copy and paste those results to a reply here
to do that:
From the notepad menu - choose
Edit -
Select all
all the text will be highlighted
Next
From the notepad menu - choose
Edit -
Copy
Now go back to the forum - reply and then right click in the reply box and
paste ------------------------------------------------------------------------ ------------------------------------------------------------------------ Ping Tests
If you cannot access the internet with this PC, then you will need to paste the results into something
like notepad and then copy onto a machine that can access the internet and post results here
Save the file to a USB flash drive or other removable media. Plug it into the working computer with
internet access and copy the file and paste here.
Start> Run {search bar in Vista/W7}> CMD to open a DOS window and type:
Type the following command
Ping {plus the number thats shown against the default gateway shown in above
ipconfig /all}
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste
Type the following command
Ping google.com
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste
Type the following command
Ping 209.183.226.152
post back results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste
Quote:
For your information only
these tests will check various stages of the connection, the first ping test, ping default gateway
checks to see if you still have a connection to the router the next two
Ping google.com & Ping 209.183.226.152 tests the connection to internet , one by name and one by
number which checks that the dns is working |
------------------------------------------------------------------------ ------------------------------------------------------------------------ Run Xirrus Wi-Fi Inspector
Download and install
If you cannot access the internet with this PC, then you will need to copy the program across to the
faulty PC
Save the file to a USB flash drive or other removable media. Plug it into the working computer with
internet access and copy the file and paste here.
http://www.xirrus.com/Products/Wi-Fi-Inspector.aspx
Direct link to the program is here
http://wpc.475a.edgecastcdn.net/0047...etup.1.2.0.exe {If the above link does not work heres another link
http://www.pcworld.com/downloads/file_download/fid,77196-order,4/download.html}
Then run and install the program - on a wireless enabled PC/Laptop
if you get an error - You need
NET Framework installed for the
WiFi Inspector to function.
Run the program
A user guide is available here
http://www.xirrus.com/Products/Wi-Fi-
Inspector/xirruswifiinspectorguide1-2-0.aspx
post a screen shot of the program running -
if there are a lot of networks showing can you
click on "networks" top lefthand area - so we can see all the network information, and
also
post which network "Adapter Name" (1st column) is yours on the list
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.
Full details are here
http://library.techguy.org/wiki/TSG_...g_a_Screenshot
Note:
For a reliable (or robust as the Xirrus user guide says) wireless connection you need a signal of about
-70 dBm or better.
If you are using the Mac OS then use
http://www.istumbler.net/ ------------------------------------------------------------------------
Search 
