Network problem

  • Thread starter Thread starter c.dexter.ward
  • Start date Start date
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c.dexter.ward

Hi,

This is probably a basic question that has been answered many times but
I did not find anything that I can understand on the web (given my poor
network knowledge).

My computer does not connect to internet... When I plug the network
cable, the "not connected" icon disappears from Windows icon bar but I
still not have connectivity.

The only thing I am sure about is that the problem does not come from
the connection since it works fine with my other laptop. Probably a
software problem.

The OS is Windows XP Pro.
The network card (modem) is Realtek TRL8139/810x Family fast Ethernet
PCI card.
The connection is type Comcat broadband.

IP config gives:
Connection specific DNS suffix: blank
Autoconfiguration IP address: 169.254.215.197
Subnet maks: 255.255.0.0
Default gateway: blank

The connection is set to acquire IP automatically.

I have tried:
- to re-install the modem drivers.
- to enter manually the DNS, IP, subnet and default gateway by copying
from my other computer

Only one computer is connected at a time.
I do not drink, take drug, etc... :D

Any idea?

Charles
 
Hi,

You could try resetting winsock.. To do that, follow this steps(all TCP/IP
settings will be lost):

1. Click Start / Run, type regedit

2. Delete the following registry keys:

a.. HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock

b.. HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock2

3. Restart the computer

4. Open Network Connections

5. Right click LAN connection and choose Properties

6. Click Install, then Protocol and click Add

7. Click I have Disk and type C:\WINDOWS\inf

8. On the list choose Internet Protocol (TCP/IP) and click OK

9. Restart your computer

Are there any error when you run following commands:

-ipconfig /release

-ipconfig /renew

-ipconfig /flushdns

-ipconfig /registerdns

Regards,

Anton Pegan
 
Thank you very much for your help.
I did as you said and everything went smoothly expect the ipconfig
/renew command which raised an "unable to contact your DHCP server"
error.

Any idea?


Anton Pegan a écrit :
 
Ok, Anton your suggestion helped me to find the solution. I found that
the problem comes from the modem as the Comcast modem can talk to only
one computer.
The solution is just to power cycle it (unpluged it 30s) before
switching to another computer.

Thanks.
 
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