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Windows 7: Local Area Network doesn't have a valid IP configuration

08 Sep 2011   #1
Gagv

windows 7 enterprise 64 bit
 
 
Local Area Network doesn't have a valid IP configuration

A few days ago I arrived to Germany to a study for a semester. In the house where I'm staying there's a modem with a Lan Cable that I'm supposed to use. I plugged it the day I arrived and I notices I had no Internet connection. After running a few diagnoses the system told me that "Local Area network" doesn't have a valid IP configuration. I don't know why this message appears and why can't I connect to the Internet. I've checked so many forums and I'm starting to believe there's no solution to my problem.
I've checked that the IP is in automatic configuration and I've also tried to connect with other modems what I obtain the same result....
PLEASE HELP ME, I will fail all my courses without Internet


My System SpecsSystem Spec
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08 Sep 2011   #2
brady

 

You might need to power down the laptop, then power off the modem. Keep the modem powered off for about 30 seconds then power it back on. let the lights cycle through until you see connectivity on the modem, then (After plugging the ethernet cable into the LAN slot) power the laptop back on.

If it still doesn't work, you may want to check for Antivirus/Security software/Static Ips.
My System SpecsSystem Spec
08 Sep 2011   #3
Gagv

windows 7 enterprise 64 bit
 
 

It doesn't work, what did you say about antivirus?
My System SpecsSystem Spec
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08 Sep 2011   #4
brady

 

Some antivirus softwares my conflict with new ack requests to dhcp servers (your modem in this case).
Simply disabling it may not help, however. What antivirus and security sofware(s) are you running?
My System SpecsSystem Spec
08 Sep 2011   #5
Irene

Windows 7 Home Premium 64bit
 
 

Some useful information here:
"Wireless Network Connection doesn't have a valid IP - Microsoft Answers
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.


Quote:
Method 1:
Fixing Common networking connectivity issue:
This article in for Windows Vista but applies for Windows 7 also.

To reset the TCP/IP stack go to this article and either click on "Fix it for me" or follow the instructions to fix it yourself:
How to reset Internet Protocol (TCP/IP)
Quote:
Method 3:
You could also try ipconfig/release an renew command from the command prompt.
Follow the steps mentioned below.


1. Click on start button.
2. Type cmd in the start search box and press enter.
3. Right-click on the “cmd” and run as administrator.
4. Type the commands “ipconfig /release” and “ipconfig /renew” without the " "
My System SpecsSystem Spec
08 Sep 2011   #6
Gagv

windows 7 enterprise 64 bit
 
 

I'm running the Mac Affee and supose the security softwares from windows
My System SpecsSystem Spec
08 Sep 2011   #7
brady

 

If it were me? I would uninstall mcafee and related security suites then try again. once successfully connected, I would reinstall antivirus.

Can you try Irene's suggestions before continuing?
My System SpecsSystem Spec
09 Sep 2011   #8
Gagv

windows 7 enterprise 64 bit
 
 

Irene[s suggestion didn't work. I can't reinstall mac Afee because I don't have the driver here I'm studying far away from home. Could it be any other possibility?
My System SpecsSystem Spec
09 Sep 2011   #9
paul1149

Linux Lite 2.8 x64 (full-featured, fast, rock-solid)
 
 

You're plugging directly into a modem without a router? Try the computer via wire at a different location. Try changing the wire. Disable McAfee in MSConfig/Startup (or lose it altogether and switch to MS Security Essentials, free). Open a command window and enter ipconfig /all > %USERPROFILE%\desktop\ip.txt and attach the output file here.
My System SpecsSystem Spec
14 Sep 2011   #10
Gagv

windows 7 enterprise 64 bit
 
 

I dont think it's my mc affe I think it's a problem with the network on my student residence. If I buy a router and turn the connection into a wireless ocnnection. Will it work?
My System SpecsSystem Spec
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 Local Area Network doesn't have a valid IP configuration




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