lost Internet connection

[dhallar]

I removed a syslink router-firewall today, and, as a result, my dual-boot Windoze/Feisty computer lost Internet connectivity. We have XP connecting again, but Kubuntu keeps wanting to reconnect to the router's old address. I went to system settings--> network settings as root. The route there is 0.0.0.0. I was able to enter the new DNS (68.xxx.xx.xx) settings, but it won't accept my gateway setting. In "configure"interface, under TCP/IP address it's set to automatic DCHP and the box is checked below it.

How in the world can I get it to lose the old settings and search for and accept the new IP addresses?
(I used the search function several times, and I couldn't find a thread that addressed my situation.)

Thanks in advance. I'm lost without Kubuntu.

[umarzuki]

Re: lost Internet connection

try

sudo dhclient eth0

if eth0 is your interface, in my example network card port number 1.