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Jan 20th, 2009

Windows 2000 looses outgoing network connectivity randomly

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So this is one of the strangest issues I've seen...

I have a Windows 2000 Server box with SP4 plus all recent Windows updates. I'm not sure when this started (the server is a backup and isn't often used), but after being on from anywhere between several hours to a day or two, the server won't be able to make any outbound network connections. Loading Internet Explorer just results in the "This page cannot be displayed" error, trying to browse to a network resource returns "The path was not found", if we try to connect via PCAnywhere to another machine on the network, the connection times out. However, if any inbound connections are made to the server, such as remotely controlling the server via PCAnywhere or browsing to a shared network resource hosted on this machine, all is fine. Once the machine is rebooted, the problem clears up for a few hours to a day, then suddenly starts up again.

As for event log entries, the only one I've seen is an entry logged by the browser service saying it cannot retrieve a list of browsers from the browser master.

My first thought was that this is a virus or malware. After performing several scans with multiple Antivirus and anti-malware apps, no malicious software has been found. I've also swapped out the NIC. This hasn't fixed the box either. The network firewall isn't blocking the server and IPSec is not enabled on this machine.

I would just rebuild the box but it contains software that only our vendor can supply and they want a very large fee to reinstall it. Are there any other options that exist?

loligator

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Jan 20th, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

Loligator, Have you checked the power scheme settings, especially the NIC properties and uncheck allow the computer to turn off this device to save power.

Hibernation is the debbil.

vhex

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Jan 20th, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

Has it got a fixed IP or DHCP?

And yes, check under device manager to ensure it doesnt put the card into sleep.

jbennet

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Jan 20th, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

hey all,

thanks for the replies. as far as i can tell, windows 2000 doesn't support the power management features that are recommended I check. I did check the device manager and there are no power management options under either of the NIC cards. I did check through the control panel applet and the system is set to never sleep, hibernate, or go on any sort of standby mode. All power saving features are disabled.

The machine has a static IP address.

On another note, I have found that even after all outbound connections go down, I can still ping out from the server. I tried pinging the gateway, the server's own IP address, and another machine on the network. All worked fine. If I open IE or PCA though to try and make some outbound connections, both of these fail.

loligator

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Jan 21st, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

hi, try to open IE..go "tools" then "internet options" under internet options choose "connections" then click "setup" try to install a new internet connection.. check if it will help.. or try to check whether there are any settings on this option that might cause your problem.. just try.. lol
have you tried to change your lan cable?

cguan_77

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Jan 22nd, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

i've swapped out the LAN cable and already tried resetting IE. If no other ideas are posted, I'm going to try and repair winsock which I was reading can get corrupted and cause whacky issues. I'll let everyone know how that goes. I won't be able to do that until Saturday though so any other suggestions are greatly appreciated!

loligator

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Jan 22nd, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

hi, check out this one..

http://support.microsoft.com/kb/Q837333

cguan_77

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Jan 26th, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

Click to Expand / Collapse Quote originally posted by cguan_77 ...

hi, check out this one..

http://support.microsoft.com/kb/Q837333

thanks so much for the link cguan. i gave that a try saturday and i thought it resolved the issue, but unfortunately, the problem started happening again today! are there any other ideas out there? i'm ready to tell the client they're going to have to call the vendor and reformat the server if nothing else comes up

loligator

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Jan 29th, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

It is very strange,I have never come up across this kind of issue

Last edited by jbennet; Jan 29th, 2009 at 3:55 am. Reason: snipped fake sig. check the rules

Leonle

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Jan 29th, 2009

Re: Windows 2000 looses outgoing network connectivity randomly

You mean to say that you are able to make inbound connection
using PCAnywhere . Are you using symantec pc anywhere software?
Are you accessing this computer in your local network from another location using PcAnywhere via internet?

by logging are you talking about the cookies and temperory files that are saved in your system?

Who provided you the static IP address? If you are able to access the computers in your local network from another location, then it means that there is nothing wrong with your local network.
The computers in your local network are successfully connected to the network device or firewall.
Please donot change any of your hardware device without asking,
as I already stated, there is nothing wrong with the connection of your computers in local network.

Please answer the questions that I have asked so that we can come close to the solution.

Frank Wallis

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