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no http 10 minutes after reboot

By etienneh8y ·
Greetings.

I will do my best to describe this problem as accurately as I can.

I have a Toshiba Prot?g? laptop that belongs to one of our travelling users. The machine has been kept up-to-date with MS updates, AV and anti-spyware.

Here is the situation:
When the machine initially boots, all internet functionality works normally. After about 5-10 minutes (even if not logged in) the machine can no longer resolve http:// websites. https:// and all network resources work normally. Relogging does not fix the problem.

What I have tried:
I have run Anti-virus and anti-spyware tools (E-trust and AdAware -- including the vx2 plug-in)
I have searched the list of services, and processes running on the machine and have not found anything that sent up any red flags. I have run tcpview and with the exception of an inordinate number of the following:
[system process]0 trying to access the domain controller with status: TIME_WAIT.

I have rolled back Media Player to version 9, rolled back windows to settings prior to this complication and uninstalled all non-essential software (I-tunes, Yahoo Messenger and Port Magic)

Any suggestions would be very much appreciated -- I am very very stuck.

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by El_Guapo In reply to no http 10 minutes after ...

try pinging sites from a command prompt to determine if it is IE or network problem.

Run ipconfig /all make sure settings have not changed.

check connection settings in IE?

Dynamic or static ip settings?

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by etienneh8y In reply to no http 10 minutes after ...

"try pinging sites from a command prompt to determine if it is IE or network problem."

Forgot to mention that I checked this already. ping works fine.

"Run ipconfig /all make sure settings have not changed."

nothing changed.

"check connection settings in IE?"

I did this at the beginning and found that proxy had been turned on. I turned it off, and got to the point where I am now -- before it had 0 connection.

"Dynamic or static ip settings?"

Static IP on the domain, but Dynamic on both our DMZ and at home -- where the problem persists as described.

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by faradhi In reply to no http 10 minutes after ...

It sounds like the computer is not switching to DHCP when not on the domain.

When you set the static IP address under TCP/IP settings for the adapter, do you set it under the general tab or the Alternate Configuration?

If you set the static IP under the general tab, then it will always apply. This could be what is producing the issue. The static IP you are using may exist on the other networks. This would cause an IP conflict.

Instead, set the static IP under the alternate Configuration. This way the computer will look for a DHCP server and if it cannot find one, it will use the static IP.

I hope this helps.

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by faradhi In reply to

After re-reading the question the answer is most likely not an IP confilct.

I wish I could withdraw answers.

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by Staxxxx In reply to no http 10 minutes after ...

Sounds like you've still got a piece of scumware on your system somewhere but since you're scans keep coming up clean and you've uninstalled all non-essential programs already here are some other suggestions.

If E-Trust and Adaware are coming up clean it is always possible you have something that neither are capable of detecting. TrenMicro has a nice online scanner that detects both viruses and spyware. You may want to give it a try and see if it finds anything. http://housecall.antivirus.com

Have you run Hijackthis? It can be downloaded from
http://www.spywareinfo.com/~merijn/downloads.html

If you're not familiar with Hijack this you'll want to read this http://www.spywareinfo.com/~merijn/htlogtutorial.html and consider posting your logfile on their message boards for help with interpeting what's supposed to be there and what's not.

Have you tried putting the ip address directly in the web browser? example http://209.131.36.158/ should take you to yahoo

If that works you may want to try to flush the DNS cache or reset the TCP/IP stack.

from a command prompt ipconfig /flushdns

or to reset the tcp/ip stack?
from a command prompt run netsh int ip reset filename.txt

Another thing you may try is the System File check
Use the System File Checker tool to scan all of the protected files on your computer:
Click Start, and then click Run.
In the Open box, type sfc /scannow, and then click OK. You may be prompted for the installation media.

Yet another suggestion is to try to install another browser such as firefox and see if this problem is and IE explorer only problem in which case you may want to reinstall Internet explorer or try a repair installation
http://support.microsoft.com/default.aspx?kbid=318378

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by etienneh8y In reply to

Poster rated this answer.

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by etienneh8y In reply to no http 10 minutes after ...

"If E-Trust and Adaware are coming up clean it is always possible you have something that neither are capable of detecting. TrenMicro has a nice online scanner that detects both viruses and spyware. You may want to give it a try and see if it finds anything. http://housecall.antivirus.com"

I don't stay connected to the internet long enough to complete something like housecall... I have tried Search & Destroy... clean.

"Have you run Hijackthis? It can be downloaded from
http://www.spywareinfo.com/~merijn/downloads.html"

Ya, I ran that since I posted, but didn't find anything incriminating except for that iTunes hadn't been completely removed.

"Have you tried putting the ip address directly in the web browser? example http://209.131.36.158/ should take you to yahoo"

yes... nothing

"Another thing you may try is the System File check
Use the System File Checker tool to scan all of the protected files on your computer:
Click Start, and then click Run.
In the Open box, type sfc /scannow, and then click OK. You may be prompted for the installation media."

I have set this to run overnight as I am going home from work... we'll see tomorrow I guess.

"Yet another suggestion is to try to install another browser such as firefox..."

I have tried both IE and Firefox

I have also used rootkit revealer... nothing interesting except for: HKLM\SOFTWARE\Classes\webcal\URL Protocol 1/28/2005 5:17 AM 13 bytes Data mismatch between Windows API and raw hive data. but from the sysinternals forum... this appears to be meaningless.

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by wcp In reply to no http 10 minutes after ...

It?s got to be due to security program(s), firewall, for example, that prevents internet connection after a while.
It could be due to settings of current firewall or residual setting of uninstalled firewall.

My suggestions are

1. Uninstall any third party firewall
2. If any third party firewall had been uninstalled before the current firewall, reinstall and then uninstall it. I strongly recommend you doing this.

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by wcp In reply to

1. Run Services.msc and see if any third party firewall has started. If you can recognize any, stop the service. Better yet, you must uninstall the program. It may be a time consuming but compare services of this troubled system to a healthy one with similar system configuration to find any anomaly.
2. Run MSCONFIG > Services and click on Hide All Microsoft Services and Disable All. Restart. If this resolves the problem, you can identify the culprit.
3. If you still have the problem and time is of essence, back up data and clean install Windows.

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by wcp In reply to

Before clean installing Windows, try installing Zone Alarm (trial version if you do not have a regular one) and then uninstalling it.

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