Network Adaptor - No Valid IP Configuration

Hi,

I have been using Windows 7 beta (386) with no problems up until a few days ago.

I've run into the The Network Adaptor "Local Area Connection" does not have a valid IP Configuration message. When I go to Network Sharing I see that I am connected to an Unidentified Network but unable to connect to the internet. This has happened all of a sudden.

The computer is an Acer Aspire M1610 and the router is a Dynalink RTA1046VW.

I've tried rebooting the router, changing ethernet cables, uninstalling the network adaptor and reinstalling all with no luck. Going into Device Manager says that all is ok.

No problems with any other computer running Windows 7 in the network. I suspect that my ethernet controller has packed it in.

Any assistance is greatly appreciated.

Cheers
Laurie

Originally Posted by ljcap

Hi,

I have been using Windows 7 beta (386) with no problems up until a few days ago.

I've run into the The Network Adaptor \"Local Area Connection\" does not have a valid IP Configuration message. When I go to Network Sharing I see that I am connected to an Unidentified Network but unable to connect to the internet. This has happened all of a sudden.

The computer is an Acer Aspire M1610 and the router is a Dynalink RTA1046VW.

I've tried rebooting the router, changing ethernet cables, uninstalling the network adaptor and reinstalling all with no luck. Going into Device Manager says that all is ok.

No problems with any other computer running Windows 7 in the network. I suspect that my ethernet controller has packed it in.

Any assistance is greatly appreciated.

Cheers
Laurie

Hi,

I ran across a similar problem. Even the DM shows no problems to the Network adapters! But believe me there is a problem ; it does not really have the right VISTA compatible x32 driver the Win7 X32 might be able to use. If your MoBo CD does not have the VISTA drivers try this download site http://www.acerpanam.com/synapse/for...TOKEN=58985567 and download the VISTA driver to a medium and point that to the Device Manager during the "Right click "> Network adapter >Update driver software> Browse my computer driver software> and point to the drive letter of the optical drive containg Your CD with the downloaded and unzipped software file. I did that and the LAN connected to my Router>Internet with no further efforts. Of course if your Homenetwork is shown as "Public" in the Control Panel> Network and Internet>View Network Status and tasks > you need to change the properties to Home or whatever you want that to be as happened with my Wireless Router connected Win 7 PC.
Hope this helps.

Hi,

I'm afraid it didn't work. I tried updating, I tried uninstalling and reinstalling all with no luck. Just doesn't want to see the router at all. Still comes up with an "Unidentified Network".

Cheers
Laurie

Originally Posted by ljcap

Hi,

I'm afraid it didn't work. I tried updating, I tried uninstalling and reinstalling all with no luck. Just doesn't want to see the router at all. Still comes up with an "Unidentified Network".

Cheers
Laurie

At this point I would try to change the NIC in this "affected PC" by buying a new one or if you just want to confirm that the NIC has quit working due to its hardware component failure, borrow one temporarily from one of the other functioning PCs in the network and install and use in the network to see if the problem has resolved before going to the shop for a new Network adapter. If you want to 'buy time" in trying to choose between these options and still hoping the NIC has life in it, try to do a Firmware update of the Dynalink RTA1046VW router hoping that the problem is probably in the router and not a failed NIC. You said you have eliminated the problem as being from a damaged Ethernet cable or a good cable not firmly seated on either end on the respective ethernet ports etc and most recently ruled out (sort of) lack of 'proper driver'.
I hope you will post the outcome of your efforts for the benefit of others.
Good luck

I had the same problem, took me about an hour and a half to get working.

I happened to have Ubuntu installed as well and internet worked fine so I knew there was nothing wrong with the network adapter, ethernet cable, or modem. So I figured it was a windows 7 software error.

when researching I found that many people having this problem were running virtual machines with (Windows 7 as the host) dunno what guests they were running. so here are a few possible solutions:

1) uninstall an "unknown device" in the device manager(under the "other devices section, name of the device varies") - this did not work for me
2) install the drivers for your NIC that you get from the manufacturer(cd that comes with device or their website), basically do not use Win7 drivers for the device. - this may have worked for me...i did #2 and 3 at pretty much the same time...I have a feeling it was #2 that did it though.
3) uninstall the VM software

tell me what works, I assume #2 is the best bet...and thank god for linux or I'd still be trying to figure this out...or pissibly be lying in a pool of my own blood...

-EDIT- I immediately reinstalled the VM software(Virtualbox 2.2.2) and everything is ok for now, as it was when it was installed before, I don't really know what sparked this "doesn't have a valid IP configuration" error in the first place...

for reference I'm running the Windows 7 RC(7100)

I also have the same problem where the IP has an incorrect configuration. The computer can connect to the wireless network, but when i try to use an ethernet connection (the cable does work) it is unable to obtain a valid IP configuration. Now being on a college campus I am unable to have direct access to the routers that they are using. any suggestions?

Have you tried merging both wireless and wired networks? (It may solve connectivity problems that are caused by connecting to mutiple access points on the same network)

1. Click on Network Icon in Notification Area, click Network and Sharing Center.

2. Next to the Network in question click, Customize.

3. Click Merge or Delete Network Locations.

4. Highlight the Networks In Question and click Merge.

5. Close all Network Windows and you are done.

This may not fix but it may help. Many campus people have a multiple access points problem. Kuzuzili, let me know how it turns out. Some people report a fix.

I've been wrestling with this issue for 2 days now. I've visited a half dozen forums on this with no resolution. I'm running win7 RC and everything was fine until Tuesday morning. It wouldn't connect to the internet and wouldn't connect to the local network. It wasn't able to access the router. I have winXP pro on another drive in the same PC, and it was fine. I finally read about uninstalling the NIC drivers and reinstalling them from the vendor's website. Sure enough, that did the trick and ended two days of headaches. Thanks for the tip!

I might suspect that a driver update from Windows Update may have caused this problem.

If that is the case,,, it helps confirm my recommendation of NOT allowing Windows Updates to ever install any drivers at all.
If you notice that WinUpdates has a driver update. Head to the Manufacturers site and get the update from there.

The reason I suspect this is the case is, this is affecting numerous people all at once but not everyone.

Hello everyone, I have just experienced this phenomenon today and have just been fighting with it for around 6hrs now. It worked yesterday, now nothing. I just uninstalled the device totally and I'm going to see if I can get it back. Windows didn't/can't install it so I'm going to try to get it from Gigabyte. if antone would have any suggestions It would be apperciated. Thanks!

System notes:

AMD 4200+
GA-M57SLI-S4 r 2.0
Evga GTX 260
Mushkin PC6400 4GB
Seagate 250GB Hdd (OS)
Western Digital 1TB (Storage)
silverstone DA1000 1000W 12V single rail 80A
Silverstone TJ-05