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Connection doesn't have a valid IP configuration (wired)

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Hello,

Have an infuriating problem at the moment. I have a dual-boot set up with Windows 7 Ultimate and Windows 10 Pro 64-bit, and a Netgear N300 (DGN2200v3) modem router but wired-up. Using Windows 10 I can get connect to the internet but not with Windows 7 - which is my primary system, with everything setup and configured the way I like it, and so on. I lost my W7 connection when I uninstalled a free firewall (Comodo? ZoneAlarm?) which was causing me problems.

Now, when I diagnose the problem, I get the message: 'Local Area Connection 2 doesn't have a valid IP configuration" (also had messages about "verify local network adapter" and "reset the local area connection"). Under 'Network connection' settings, it says my broadband is "disconnected" - but when I click 'connect', it whirls around for quite a long time then I always get a message about "the modem has reported an error ... Error 651".

Naturally, I've Googled around - and looked at the existing threads on this very forum about this problem - but so far nothing has worked. Any ideas?

My Specs are: Intel Core2 Duo E6750 \ Abit IP-35 Pro \ 4gb Corsair Twin2X2048 XMS Xtreme Performance (800mhz) \ Gigabyte Windforce GTX660 2GB OC \ Sound Blaster X-Fi Xtreme Gamer \ Corsair HX 620w PSU \ Samsung SpinPoint 2TB \ Antec 900 Ultimate Gamer \ Arctic Cooling Freezer 7 Pro \ Samsung Writemaster SH-S223Q \ Acer 24" X243H

Thanks,
DANNY O'DARE
 

Tatty_Two

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I had a similar problem ages ago, I think all I did was delete the networks showing in the network & sharing thingy and re-booted, on re-boot it detected the connection but at the same time reset the configuration.
 

Solaris17

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Benchmark Scores I dont have time for that.
open an admin command prompt.

type

Code:
netsh i i r r

Let us know what happens. Sounds like something broke your stack.
 
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open an admin command prompt.

type

Code:
netsh i i r r

Let us know what happens. Sounds like something broke your stack.
is that the same as ipconfig /renew?
 

Solaris17

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Benchmark Scores I dont have time for that.
is that the same as ipconfig /renew?

Not exactly this does a bit more regarding networking settings and the netbios.

renew simply prompts the router for a new DHCP lease.

the above command works on fixing networking for windows itself. so that the communication to the router is more likely to succeed.
 

Easy Rhino

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Not exactly this does a bit more regarding networking settings and the netbios.

renew simply prompts the router for a new DHCP lease.

the above command works on fixing networking for windows itself. so that the communication to the router is more likely to succeed.

oo, that is a neat trick. much faster than having to open a bunch of windows to get to the network/sharing troubleshooting fixing thing.
 
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