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Local area conection doesnt have a valid ip configuration (windows 7)

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#1 osher7788


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Posted 02 March 2014 - 09:22 AM


recently i was having some problems with my internet connection. it seems to just disconnect or just "worsen" for some time( packet loss and what not).

the thing is,we recently changed the router and the ISP claims that the router doesn't seem to have a problem and what seems more likely is that one of the computers in my household is infected with a internet virus.

the previuos router i had,whenever i tried to use the windows solve maker (my computer is in Hebrew so im not sure about its name), its said something about the DNS,and whenever i used the command ipconfig/flushdns it seemed to fix it, now,even that wont work! and if my internet drops i need to restart my router.


my Question is: how can i be sure i am not infected with some type of virus that affects my internet connection? i use Avira and i scanned the system with no results.

the tech support offered me to do a test, plug one computer at a time and see if the internet drops, if it doesn't drop it means it isn't computer problem.(i have 4 computers in my household, 1 laptop and 2 are for me and my brother, an every pc except the laptop are connected directly to the router via cable).

and i am doing it now.


Thanks in advance!

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#2 noknojon


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Posted 06 March 2014 - 05:55 PM

Hello -

Is the output of these computers fully in English. or a mix of Hebrew and English ??


Please start with the most likely infected computer Only - (test one at a time).

Please list the Make and Model of computer, if known, and Operating System -

Download all programs to Desktop, and Copy and Paste all logs -


All scans should be performed in Normal Mode and not in Safe Mode unless requested.

Do not alter the output of any logs prior to posting them back here -



First -

Download Security Check by Screen317 from HERE
* Save it to your Desktop.
* Double-click SecurityCheck.exe
* Follow the onscreen instructions inside of the black box.
* A Notepad document should open automatically called checkup.txt; please post the contents of that document.
Note: If a security program requests permission to access the Internet, allow it to do so.



Next -

Download MiniToolBox, Save it to your desktop to run it.
Close any Firefox browsers you may have open
Checkmark the following boxes:
•Flush DNS
•Report IE Proxy Settings
•Reset IE Proxy Settings
•Report FF Proxy Settings
•Reset FF Proxy Settings
•List content of Hosts
•List IP configuration
•List last 10 Event Viewer log
•List Installed Programs
•List Users, Partitions and Memory size.
•List Minidump Files
Click Go and copy / paste the result (Result.txt).



Next -

Please download and run RKill by Grinler.
A black DOS box will briefly flash and then disappear.
This is normal and indicates the tool ran successfully.

Post the log back here.




Please download AdwCleaner by Xplode and save to your Desktop.
NOTE : Please close or save all work, as the computer will be Rebooted
Double-click on AdwCleaner.exe to run the tool.
Vista/Windows 7/8 users right-click and select Run As Administrator.
Click on the Scan button. (only once)
AdwCleaner will begin...be patient as the scan may take some time to complete.
After the scan has finished, click on the Report button...a logfile (AdwCleaner[R0].txt) will open in Notepad for review. 
If you see any which you do not want removed, remove the check mark next to it. 
Next: Click on the Clean button (only once) to remove the selected items. 
You will receive a message telling you that all programs will be close so that the infections can be removed. 
Click on OK, and then OK again to confirm the reboot.
When cleaning process is complete a log (AdwCleaner[S0].txt ) of what was removed will be on your desktop. 
Please copy and the paste this log in your next post.

A copy of all logfiles are saved in the C:\AdwCleaner folder which was created when running the tool.



Next -

Download Malwarebytes' Anti-Malware Free (aka MBAM) to desktop
* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform Full Scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* NOTE :Be sure that everything (infections) is checked, and click Remove Selected.
* When completed, a log will open in Notepad.
* Post the log back here.
Be sure to reboot the computer if required after you post the log.
The latest version of the program now scans archive files which were previously not scanned.

#3 noknojon


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Posted 13 March 2014 - 10:20 PM

Hello -

You have not responded for over a week now.


Did you solve the problem, or was it a problem with your Internet Provider ??

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