No network Connection. Replaced a switch.

Asked by Gunnar Tryggvason on 2010-04-20

I reconnected from 1 GB switch to 100mb switch. All is on auto, i.e. receiving IP automatically etc. I am able to get IP-nr, from the router on a windows-xp laptop. This is a wired connection and I tried to put in a manual address, but the computer is unreachable. The computer is running 9.04. How do I unblock the connection?

Question information

English Edit question
Ubuntu Edit question
No assignee Edit question
Last query:
Last reply:
Ian Ace (iaculallad) said : #1

Try this one:

Change your static address to dynamic address option then open your terminal and input the following command below:

Release IP:

sudo dhclient -r

and Renew your IP from your DHCP server with:

sudo dhclient

Lastly, try pinging your gateway IP address:

ping IP_of_your_Gateway


Thanks. If I ping the gateway, or any other computer, result is "unreachable". There is a green light on the onboard netcard and also on the switch. When sending Sudo dhclient -r I get following reply .: sending on Socket / fallback. If I input manually an IP-address I can Ping that address but I cant see the gateway or any other computer. Maybe my netcard is broken?. The wiring is ok.

Can you help with this problem?

Provide an answer of your own, or ask Gunnar Tryggvason for more information if necessary.

To post a message you must log in.