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Windows7 Internet connection

Posted on 2011-09-12
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Last Modified: 2012-06-22

I have a Dell Inspiron 1545 with Win7 Home Premium 64.  

Machine is about a year old.  4gb RAM.

About a week ago it started to be very slow.  

I ran ComboFix, MalwareBytes & Dr Web.  I ran SpinRite to clean up any disk issue.  I removed Dr Web & CF from the machine.  No other installed firewalls.

I can not access the internet with IE, FireFox or Chrome.  However I can ping my.yahaoo.com from a CMD line

I ran the various NETSH reset commands as found in troubleshooting areas.  I ran scannow /sfc.  I tried disabling both wireless and wired adapters, tried Win7 repair.  Nada.

What else do you suggest other than wipe/format/reload?

Many thanks,
Rob



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Question by:coldspringsolutions
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by:yjchong514
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Dear EE members,
What you mean cannot access via browser? Can you upload a screenshoot?

Rdgs,

yjchong514
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by:J1nxx
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Try resetting the IE settings to default. Also try re-installing a browser?
If the re-installed browser does not work, you may have some sort of a rootkit blocking access to Internet even though you can ping an address
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by:J1nxx
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Also try running either AVAST! or smitfraud fix
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by:nobus
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what does ipconfig return (in a dis box) ?
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by:coldspringsolutions
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ipconfig returns a long list of media disconnected messages, one for ethernet, two for wireless and about 50 for virtual tunnel adapters (which I've never seen before, a Win7 feature).  

LAN adapter reads:
home
192.168.1.11
255.255.255.0
192.168.1.1

I will try re-installing browsers and tools mentioned above.  I thought the tools above were sufficient to get rootkit.  I also ran KAV Rescue CD.

More tonite.  Thanks....
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nobus earned 250 total points
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by:coldspringsolutions
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I've already tried a scannow /sfc
Will read up on win7 repair.  I know xp and vista had cd repair solutions.  The win7 startup repair didn't fix it.

I'm thinking it is indeed a rootkit since kav 10 rescue cd was able to pull down updates.  Once booted, mbam can not get updates, as browsers too get page not found.
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by:J1nxx
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If you create a different user account will it work? Silly I know, but I have seen it before.
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by:J1nxx
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Also try boot into safe mode with networking.  If you can access Internet in safe mode it is indeed some sort of spyware/root kit blocking access
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by:coldspringsolutions
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No Internet access in safe boot mode either.
But can successfully ping and get ip address.
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by:J1nxx
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Perhaps time to consider a format......
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by:coldspringsolutions
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After many hours of clicking, I found that a 64 bit version of IE works fine on the laptop.

IE x86, Firefox x86 and Chrome x86 do not work.

Updaters to MBAM, etc, do not work.  

I believe the issue is with rundll32.exe that allows x86 programs to work on an 64 bit box, limiting the i-net connections....

Any other thoughts?

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by:coldspringsolutions
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It turns out that the OS is corrupt.  64 bit versions of browsers work fine,  

32 bit browsers do not work.  Some 32 bit programs do not work.

Many thanks to all.
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by:nobus
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odd i did not get an A grade...
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by:coldspringsolutions
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Your solutions did not solve the problem.
Scannow /sfc was tried as mentioned in orig post
System repair in startup did not resolve

I do not want to reinstall OS.

Thank you.
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by:nobus
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that's your choice - however - why did you not gave any feedback?  maybe we could help you further
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