Can't get an IP from ADSL Router that assigns DHCP

Posted on 2004-04-20
Last Modified: 2010-03-18
I have an issue that is bugging me. I have 3 PCs and a Laptop on a home network connected to a Netgear ADSL Router to the Internet.
2 PCs and Laptop get IP from Router fine but one does not!
All are TCP/IP set to Auto.
This problem occurred a week ago and I could not fix it. I rebuilt system (WinXP PRO). Everything was then fixed.
On Sunday I took a Image of complete drive as backup, as all was working great.
On Monday we had a power failure. All PCs rebooted + Router. All got their IPs except one.
I have tried all the Ipconfig / release / renew but Error keeps saying Cannot renew IP.
It then sets IP to Auto Private Address 169.254........
If I set IP manually to then other PCs can Ping it, but it can't ping the others on the same workgroup.
I thought it may be a faulty NIC card, so deinstalled, replaced & Rebooted. Still no Joy.
I therefore decided to Rebuild Drive from Image taken on Sunday. This was successful but I STILL can't get IP assigned.
I therefore suspect that there is something external to PC that is busted.
The only thing I can think of is that THIS PC is connected to a Hub on it's own and from there to another Hub (all other PCs connected to 2nd Hub) and from there to ADSL Router. Perhaps the Hub is faulty.
The fact that exactly the same problem has re-occurred since rebuild is most puzzling, since post rebuild it all worked fine. I did note that during rebuild XP hung at 34 minutes. It worked fine though when I took out the NIC Card, installing the NIC post rebuild.
Any suggestions would be appreciated.
Question by:calamaster
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LVL 32

Expert Comment

ID: 10866888
Hi calamaster,

First sort out the winsock and tcp/ip stack. This tool will rebuild both:



Author Comment

ID: 10866989
Hi LucF,

Thanks for the speedy reply. I have read other comments about using this fix. I can't do it right now but will try tonight. Problem is though - surely if I rebuilt the system from a drive image of a fully working set up then the Winsock settings will be back to where they were when I was getting IP assigned??

LVL 32

Expert Comment

ID: 10867009
Sorry, I think I misunderstood your question. :(
I still suggest you to try it, but I don't give it much of a chance.

Have you tried putting the networkcable directly into the router instead of through the Hub? That would indicate that the hub is faulty if it works then.

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Author Comment

ID: 10867797
I can't put cable directly into the router because it is in another house!! I didn't want to complicate the issue by mentioning that there is a WiFi connection between my network and the ADSL Router via an Ethernet Bridge Device / Access Point Device.
What I can do is bypass Hub one and use the 'Hub to Hub' cable, straight into the NIC in dodgey PC. At least then the connection to Hub 2 is the same as for all the PCs that ARE getting the IP assigned correctly. - Again, can't try it now but will do in about 5 hours.
I'll get back with an update when I have tried these things.

LVL 32

Accepted Solution

LucF earned 125 total points
ID: 10868223
>>I didn't want to complicate the issue by mentioning that there is a WiFi connection between my network and the ADSL Router via an Ethernet Bridge Device / Access Point Device.<<
Have you ever considered that that is valuable information to know when troubleshooting? I'm not very good at mind reading :)

>>What I can do is bypass Hub one and use the 'Hub to Hub' cable, straight into the NIC in dodgey PC.<<
Yep, that's a good way to troubleshoot that hub. Btw, have you ever considered getting yourself a switch instead of a hub?

Author Comment

ID: 10870007

Fixed! Powered the Hub down and Up again and it worked!!

The Power cut must have 'jammed it' in some way. This is what probably happened before, but I must have powered it down and up during rebuild, but not 'knowingly'

I wish I had:
A. Thought of this in the first place
B. Tried this before rebuilding the whole PC last time.

Anyway, this is another possible solution to peoples problems with connectivity that others could try.

I have given you the points for your help.


LVL 32

Expert Comment

ID: 10870058


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