Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

internet connection suddenly disabled


  • Please log in to reply
87 replies to this topic

#1 Arney X

Arney X

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 08 September 2011 - 01:20 AM

AII thread with boopme. Asked me to start a new topic here.
http://www.bleepingcomputer.com/forums/topic417687.html/page__pid__2400397#entry2400397




Hi, folks -

I need your help. My internet connection suddenly stopped working and refuses to connect again. I've run TDSSKiller and MBAM (but without a web connection I can't update it), and both show no infections. There was no active program activity when the connection stopped. My DSL modem shows a solid connection and, being on a LAN, all other computers can connect, so I believe it's a resident malware-deliberate reconfiguration somewhere in my computer's system. I haven't run Unhide or FixNCR since this problem doesn't seem to be as broad as those that are corrected by those applications. I've rebooted several times - with no visible loss of other functions - but the connection remains broken.

I'm running Windows XP Home and mainly use Internet Explorer to connect. Please help me track it down & reset the connection. Thanks very much.

- Arney

BC AdBot (Login to Remove)

 


#2 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 09 September 2011 - 12:01 PM

Please download MiniToolBox, save it to your desktop and run it.

Checkmark the following checkboxes:
  • 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 post the result (Result.txt). A copy of Result.txt will be saved in the same directory the tool is run.

Note: When using "Reset FF Proxy Settings" option Firefox should be closed.

#3 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 09 September 2011 - 12:35 PM

Thanks very much for the response. The results of the MiniToolBox run are posted in this thread: http://www.bleepingcomputer.com/forums/topic417687.html/page__pid__2400397#entry2400397

Would you like me to run it again? I just don't want you to have to waste your time & go over all the steps we've already gone through. Just let me know & I'll follow all your instructions. Thanks again very much.

- Arney

#4 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 09 September 2011 - 01:48 PM

Who is your ISP?

#5 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 09 September 2011 - 02:09 PM

AT&T

#6 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 09 September 2011 - 02:13 PM

Do you know what their DNS Server IP's are?

You can check this by logging into your modem/router and check the status or administrative pages.

#7 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 09 September 2011 - 02:31 PM

I believe it's 68.94.156.1 but that may not be what you're looking for. That's what they gave me when I asked if their DNS is proprietary or specific. I don't think I can log into my modem or router since I can't get online, right? Maybe I'm getting this wrong, but lead me a little bit more so I can be sure I'm giving you what you need. Again, I'm Ethernetted into the DSL modem - which is working fine - on this peripheral computer. The computer I'm writing about is connected to the same modem, but won't display any web pages. I went through all sorts of resetting with an AT&T tech, who determined that he didn't think there was anything wrong with the modem or their IP...it's simply my computer...allegedly.

Again, I'll follow whatever you recommend. Thanks, Dan.

- Arney

#8 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 09 September 2011 - 02:45 PM

Bring up a Command Prompt via Start > Run > cmd hit enter:

On the command line type in the following:

"nslookup google.com 68.94.156.1 >> c:\nslookup.txt"

also do

"nslookup 74.125.91.105 68.94.156.1 >> c:\nslookup_ip.txt"

Do that on the affected machine

Paste the contents of the file nslookup.txt and snlookup_ip.txt in your next post.

The " " signify that that is one line for the command.

Edited by cryptodan, 09 September 2011 - 02:48 PM.


#9 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 09 September 2011 - 03:45 PM

The response I got is: "Can't find server name for address 68.94.156.1: Timed out"

I also tried the address 192.168.2.1 since that was the IP address I was given when I set up my TRENDnet network router. Same error message. Ditto for the second step.

Edited by Arney X, 09 September 2011 - 05:02 PM.


#10 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 09 September 2011 - 09:51 PM

Can you ping the following:

192.168.2.1

#11 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 10 September 2011 - 08:32 PM

Done. "Request timed out". (4 packets sent; 0 received; 4 packets lost)

#12 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 11 September 2011 - 05:15 AM

Download the network card drivers on to a CD-ROM for your computer and reinstall them:

Head on over to http://www.realtek.com and download the drivers for the 8139 Network Card.

If you need assistance locating the network drivers.

Edited by cryptodan, 11 September 2011 - 05:16 AM.


#13 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 11 September 2011 - 12:56 PM

I found "RTL8100B(L)/RTL8100C(L)/RTL8101L/RTL8139C(L)
RTL8139C(L)+/RTL8139D(L)/RTL8100(L)
RTL8130/RTL8139B(L) (Others)"

and "RTL8100B(L)/RTL8100C(L)/RTL8101L/RTL8139C(L)
RTL8139C(L)+/RTL8139D(L)/RTL8100(L)
RTL8130/RTL8139B(L) (Software)"

Which one is appropriate? Also, are the drivers too big to download to a flash drive? I've been using that to transfer data back & forth between this computer & the affected one.

Here's a bigger question: The AT&T tech who tried to help with this problem said that if I recently had a virus, the virus might have left behind some fragments that would have slowly eaten away at code related to internet access. Is this true? Is that possible here? I recently had someone here help me get rid of a variant of the TDL4 virus and started having what seemed like driver problems with audio & video (topic is 396906, if you'd like to get more background on this). Those issues were never addressed or resolved, but is it possible that's what may be going on here? If so, maybe we can address all the driver reinstalls before we're through?

Thanks, Dan. Will wait for your reply.

- Arney

#14 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:11 AM

Posted 11 September 2011 - 01:40 PM

Yes go ahead and redownload your network card drivers and reinstall them. Also I would reinstall / update any other system devices drivers as well.

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.

Publish a Snapshot using Speccy

The below is for those who cannot get online

Please take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

Pay attention to the last sentence above.

#15 Arney X

Arney X
  • Topic Starter

  • Members
  • 227 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:CT, USA
  • Local time:09:11 PM

Posted 11 September 2011 - 01:55 PM

I think I may have written too much in my last post. Realtek's downloads for RTL8139 offers the two options I listed above. I don't know which one is appropriate.

Also, is there a way to use SPECCY without a web connection? It seems that SPECCY posts a link online, but I can't get online. How do I do this? Also, where do I find my Windows Key?

Edited by Arney X, 11 September 2011 - 01:58 PM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users