Internet connectivity problem

[Steve L]

This may be the wrong forum to post this question, so apologies in advance.

After clearing out some viral problems on a PC (XP home) I'm left with an
odd and annoying issue. While basic Internet conectivity is working (I can
Ping to a website using DNS, and also Telnet to port 80 and get a response),
no application seems to be able to connect to servers - things like AV
programs getting updates - and IE or Firefox can't load web pages.

All the normal settings, such as proxy and general networking parameters are
fine. Note that it's not just IE that can't connect, it seems to be ALL apps
that try to reach the Internet.

There are either some settings got broken, or system components/files gone
the same way.

Can anyone point me in the right direction to chase this down?

Thanks
Steve

 

[Elmo]

This may be the wrong forum to post this question, so apologies in advance.

After clearing out some viral problems on a PC (XP home) I'm left with an
odd and annoying issue. While basic Internet conectivity is working (I can
Ping to a website using DNS, and also Telnet to port 80 and get a response),
no application seems to be able to connect to servers - things like AV
programs getting updates - and IE or Firefox can't load web pages.

All the normal settings, such as proxy and general networking parameters are
fine. Note that it's not just IE that can't connect, it seems to be ALL apps
that try to reach the Internet.

There are either some settings got broken, or system components/files gone
the same way.

Can anyone point me in the right direction to chase this down?

Thanks
Steve

Here are a few things to try:

Open Internet Options, Connections tab, click "Lan Settings" button,
deselect all.

Flush DNS

Click Start, Run, type CMD and click the [OK] button. Type each of the
following:

IPConfig /FlushDNS [Press Enter key]
ipconfig /release [Press Enter key]
ipconfig /renew [Press Enter key]
ipconfig /registerdns [Press Enter key]

NETSH

Click Start, Run, type CMD and click the [OK] button. Type the following:

netsh winsock reset

Press Enter key

Restart the system

You can also try this software download from a working machine:

LSP-Fix
http://www.cexx.org/lspfix.htm

 

[Bernd]

-------- Original-Nachricht --------

This may be the wrong forum to post this question, so apologies in advance.

After clearing out some viral problems on a PC (XP home) I'm left with an
odd and annoying issue. While basic Internet conectivity is working (I can
Ping to a website using DNS, and also Telnet to port 80 and get a response),
no application seems to be able to connect to servers - things like AV
programs getting updates - and IE or Firefox can't load web pages.

All the normal settings, such as proxy and general networking parameters are
fine. Note that it's not just IE that can't connect, it seems to be ALL apps
that try to reach the Internet.

There are either some settings got broken, or system components/files gone
the same way.

Can anyone point me in the right direction to chase this down?

Thanks
Steve

Did you inspect your HOSTS-file ?

Bernd

 

[PA Bear [MS MVP]]

Chances are you have much more work to do!

NB: If you had no anti-virus application installed or the subscription had
expired *when the machine first got infected* and/or your subscription has
since expired and/or the machine's not been kept fully-patched at Windows
Update, don't waste your time with any of the below: Format & reinstall
Windows. A Repair Install will NOT help!

1. See if you can download/run the MSRT manually:
http://www.microsoft.com/security/malwareremove/default.mspx

NB: Run the FULL scan, not the QUICK scan! You may need to download the
MSRT on a non-infected machine, then transfer MRT.EXE to the infected
machine and rename it to SCAN.EXE before running it.

2. [WinXP ONLY!! =>] Run the Windows Live Safety Center's 'Protection' scan
(only!) in Safe Mode with Networking, if need be:
http://onecare.live.com/site/en-us/center/howsafe.htm

3. Run a /thorough/ check for hijackware, including posting the requested
logs in an appropriate forum, not here.

Checking for/Help with Hijackware
http://aumha.net/viewtopic.php?f=30&t=4075
http://mvps.org/winhelp2002/unwanted.htm
http://inetexplorer.mvps.org/data/prevention.htm
http://inetexplorer.mvps.org/tshoot.html
http://www.mvps.org/sramesh2k/Malware_Defence.htm
http://www.elephantboycomputers.com/page2.html#Removing_Malware

**Chances are you will need to seek expert assistance in
http://spywarehammer.com/simplemachinesforum/index.php?board=10.0,
http://www.spywarewarrior.com/viewforum.php?f=5,
http://www.dslreports.com/forum/cleanup,
http://www.bluetack.co.uk/forums/index.php,
http://aumha.net/viewforum.php?f=30 or other appropriate forums as well.**

If these procedures look too complex - and there is no shame in admitting
this isn't your cup of tea - take the machine to a local, reputable and
independent (i.e., not BigBoxStoreUSA) computer repair shop.

 

[PA Bear [MS MVP]]

What's the "real truth" about pcbutts1? Read on...

• Is he an MS MVP? No!
cf. http://mvp.support.microsoft.com/communities/mvp.aspx

• If xxx.ms-mvp.org redirects to xxx.pcbutts1.com, why didn't he post that
link to begin with?

• Is he a proven thief? Yes!
cf.
http://groups.google.com/group/microsoft.public.security.virus/browse_frm/thread/58e6c02dbc6279ad
cf.
http://msmvps.com/blogs/hostsnews/a..._.-the-saga-continues-_2E00__2E00__2E00_.aspx
cf.
http://groups.google.com/group/microsoft.public.security.homeusers/msg/213247814fb4d61e
cf.
http://groups.google.com/group/microsoft.public.security.homeusers/msg/e19fce884897662f

• What do real experts have to say about him? It ain't pretty.

http://www.siteadvisor.com/sites/pcbutts1.com (Reviews)

http://www.digg.com/security/PCButts1_Under_Attack

http://www.siteadvisor.com/sites/pcbutts1.com

http://bughunter.it-mate.co.uk/PCBUTTS.TXT

http://www.mywot.com/en/scorecard/pcbutts1.com

http://www.mywot.com/en/scorecard/www.ms-mvp.org

• Does he have all his marbles?
cf. http://en.wikinews.org/wiki/NASA_van_rolls_off_California_mountain

Ignore this MVP imposter!