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Windows 7: Cannot get IP address


27 Aug 2013   #1

Win 7 Home Prem 32
 
 
Cannot get IP address

Hi all,
My daughter and son-in-law were living with us, sharing my router for their internet access on their Win 7 x64 PC. Everything worked fine, including access to my home network for file sharing and storage.
They moved into their own house yesterday and got their internet service installed. The PC that was fine on my network will not get an IP on their new service. A laptop works fine both wired and wireless, as do their smart phones. The service uses a 2wire router (same firmware as mine).
Is it possible their computer is still looking for the previous connection? It seems so strange....on the weekend it worked fine on my network, they turned it off, moved it and now it won't connect.
Any suggestions would be GREATLY appreciated!

Thanks,
Phil


My System SpecsSystem Spec
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29 Aug 2013   #2

Win 7 Home Prem 32
 
 

Further to this, I brought the computer back to my house and it connected without issue.
My System SpecsSystem Spec
29 Aug 2013   #3

Windows 7 Profession x64
 
 

First step would be to make sure that you're adapter isn't configured with a static address. Right click on the little network icon on your tray or type "network and sharing center" in your start menu to open your network and sharing center. Then click on change adapter settings, local area connection (or whatever adapter you're trying to use), click properties, click ipv4, click properties on that and make sure the radio button is checked for "obtain IP address automatically". If this is all set properly you should be fine to recieve DHCP from your home router. If this doesn't work, go to your command prompt and type "ipconfig" and post your results here and we will help you further. Also, make sure your cables are all good and plugged in properly.
My System SpecsSystem Spec
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29 Aug 2013   #4

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Once you've tried these things, if you still have no connection, it may be time to contact the ISP.
My System SpecsSystem Spec
29 Aug 2013   #5

Win 7 Home Prem 32
 
 

Thanks for the reply.

Yes, one of the first things I did was to check that it wasn't configured with a static address and everything looked good. I have tried everything possible I have found online...winsock fix, flushing, renewing, etc.
The release/renew commands wouldn't work at their house because it doesn't see the Ethernet cable at all...tells me 'network cable is unplugged'.
I plugged in my laptop to that same network cable and all was good.

When I run ipconfig/all when the PC is plugged into their network cable, it tells me DHCP is not enabled, but it gets an IP address no problem on my system.

My next step will be connecting the PC to another cable on another port of the router to see what happens.
My System SpecsSystem Spec
29 Aug 2013   #6

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Use a laptop and connect thru ethernet to the new router. Try to get to the router's config page (Usually 192.168.1.1 or something similar) and check the router's settings. I don't expect a problem because the laptop seems to work, but you never know.

Considering that this is ethernet, and not wireless, you shouldn't have configuration issues. This one is a stumper.

Having said that, check the contacts inside to ethernet plug on the PC.
My System SpecsSystem Spec
29 Aug 2013   #7

Win 7 Home Prem 32
 
 

Yep, already accessed the router's config page. It's a 2wire - 192.168.100.254 - in case you ever need it.
The router is the same brand as I have at home, same firmware...and all settings are identical.
It seems to me there is only one possibility....that there's something about the cable, or router port, or both, that the PC doesn't like.
My System SpecsSystem Spec
29 Aug 2013   #8

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

I think the cable is eliminated cuz your laptop works with it, but try replacing it anyhow. But, yeah. Check the router port.
My System SpecsSystem Spec
30 Aug 2013   #9

Windows 7 Professional x64
 
 

If you open an elevated Command-Prompt and type: 'IPCONFIG /ALL' (within the ') what result do you get? Do they match up with DHCP sent from the router?

Regards,
My System SpecsSystem Spec
06 Sep 2013   #10

Win 7 Home Prem 32
 
 

Thanks to all who offered suggestions. It turned out that the ethernet cable was the culprit....new ends and it's good as new!
My System SpecsSystem Spec
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