Cable Forum - View Single Post - Unable to contact DHCP server. cannot retrieve IP address (Router recommendations)

Vimal Punto · 24-12-2005, 12:18

I have a new connection. And two laptops. I connected one first, directly to the modem using NTL CD. It did work fine. One thing that happened, is some of my pro application that use FLEXLM licences stopped working because MAC address on the Ethernet cad was changed. !!! Why is this happening?

Anyway, I then tried to connect the second laptop with the same cable and after some trouble it did work.

But the first one does not want to connect anymore? Any ideas why? I have tried resetting, restarting (both PC and the modem) but to no avail.

It is running WinXP Pro. I tried checking things using ipconfig and noticed that my DHCP client was switched off. OK, I enabled it.

ipconfig lists the address 169.254.88.93, it can release it to 0.0.0.0 but cannot renew it saying that it cannot contact the server.

The tech support is not very helpful. The recommended restart and then said I could refresh IP setting by running

netsh int ip reset resetlog.txt

Which did not help.

Any ideas what could be wrong. Or what I could check or try?

It seems NTL software messed up this machine as the other one can still connect just fine.

Thanks a lot

24-12-2005, 12:18	#1
Vimal Punto Inactive Join Date: Dec 2005 Posts: 4	Unable to contact DHCP server. cannot retrieve IP address (Router recommendations) I have a new connection. And two laptops. I connected one first, directly to the modem using NTL CD. It did work fine. One thing that happened, is some of my pro application that use FLEXLM licences stopped working because MAC address on the Ethernet cad was changed. !!! Why is this happening? Anyway, I then tried to connect the second laptop with the same cable and after some trouble it did work. But the first one does not want to connect anymore? Any ideas why? I have tried resetting, restarting (both PC and the modem) but to no avail. It is running WinXP Pro. I tried checking things using ipconfig and noticed that my DHCP client was switched off. OK, I enabled it. ipconfig lists the address 169.254.88.93, it can release it to 0.0.0.0 but cannot renew it saying that it cannot contact the server. The tech support is not very helpful. The recommended restart and then said I could refresh IP setting by running netsh int ip reset resetlog.txt Which did not help. Any ideas what could be wrong. Or what I could check or try? It seems NTL software messed up this machine as the other one can still connect just fine. Thanks a lot