local area connection doesn't have a valid ip

August 16, 2011 at 15:55:28
Specs: Windows 7, 2/2
I have a windows 7 computer that will not obtain a IP address despite everything i try.

I've looked first at TCP/IP properties v4 and v6 both set to automatically obtain ip address.

network discovery is on on local and public networks. tried to manual add an ip address. tried the stupid troubleshooting tool which just states the obvious.

This is for the wired cat 5 connection to connect to a cable modem. It has no problem connecting to a wireless hotspot.

MSI K8N Neo
AMD Athlon 64 3200+ @ 2.21ghz
1.5GB DDR 3200
nVidia N6600 256mb video
Segate 500 gig sata
NEC ND-3500AG DVD R/RW


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#1
August 16, 2011 at 16:55:49
For security you really need a router due to it's hardware firewall but it will also accept your ISP's IP address and become your DNS and assign your local IP addresses and Windows 7 should accept this.

You have to be a little bit crazy to keep you from going insane.


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#2
August 16, 2011 at 23:49:22
do you get a little pop up on the bottom righ that you are connected to the lan?
when you connect to the cable modem/router type the modem ip address in your browser you should login as admin and set the modem/router to default usually, then run the setup wizard from there is should be easy to setup your connection, there is also a small hole on the router, stick a pen in the hole pull the power and then while the pen is still in the hole power up remove the pen, this will usually set the router/modem to default.
have you also checked your cable and cat 5 port with another network just to be sure they both work? check in device manager that your network connection is correctly setup and has the right drivers, you may also have to switch off your wifi for your cat 5 to connect, as it may not connect to two networksa at once, not usual but woth looking into if all else fails

i hate computers!
but cant help myself....


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#3
August 17, 2011 at 14:02:34
All it gets is a little yellow caution with ! in the middle. You check network status and it's connected with time counting but no IP address and says limited connectivity or something like that.

Have tried a router too, won't connect through it either. It's setup DHCP. Even tried assigning a static IP address, Nada. Cat 5 Cable works as it's connected to the desktop i'm using right now and works with or without a router.

MSI K8N Neo
AMD Athlon 64 3200+ @ 2.21ghz
1.5GB DDR 3200
nVidia N6600 256mb video
Segate 500 gig sata
NEC ND-3500AG DVD R/RW


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Related Solutions

#4
August 17, 2011 at 15:09:53
You need to clone the working pcs mac address to the routers wan interface.

The internet connection has been serialized in that it was registered to the working pcs mac address. That mac and only that mac can successfully connect.

This is where cloning the mac address to the wan interface of the router comes in.

There should be a button on the routers wan config page for this. Connect the router to the modem. Connect the working pc to the router.
Clone the working mac address to the router. Save the config and reboot the router.

All should be good now.

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


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#5
August 21, 2011 at 07:28:00
I ended up uninstalling network adapter in device manager and downloaded and reinstalled new driver from hp website. works great now.

MSI K8N Neo
AMD Athlon 64 3200+ @ 2.21ghz
1.5GB DDR 3200
nVidia N6600 256mb video
Segate 500 gig sata
NEC ND-3500AG DVD R/RW


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