must restart to reestablish net

February 6, 2006 at 12:27:08
Specs: Win XP HE, SP2, 256 MB
I've had much success here in getting solutions to my pc problems in the past, and hope to get the same result this time. I recently had broadband activated at my home, and set up a LAN, but I am already having a problem I can't solve on my own. First, the necessary info: my DSL connection is coming through a home gateway (modem/wireless router), with which I have set up a LAN. I connect to the LAN (and therefore the internet) with a single, notebook computer, though sometimes I use an ethernet cable, and other times a wireless network card (depending on whether I want to sit at my desk or on my couch!).

Here's the problem: whenever the computer's connection to the LAN is interrupted (whether by disconnecting the card/cable, or by putting the system in standby or hibernate), I cannot subsequently re-establish the computer's connection to the internet: Outlook will not retrieve or send mail, and the browser will not load pages. What's more, whenever this happens, I cannot even access the control panel for my router, leading me to conclude that the computer is failing to even connect to the LAN itself.

As expected, when I'm trying to re-establish the connection via wireless network card, the computer fails to acquire a network address. However, paradoxically, when I'm using the ethernet cable, the icon in the system tray shows that there is a LAN connection present and that it is connected at full (100 Mbps) speed, and the Local Network light on my router turns green.

The only solution to the problem is to restart the computer WITH either the network card or ethernet cable plugged in. When I do this, I have no problems with my connection until I standby/hibernate, or disconnect the card/cable.

The only thing that I have tried to fix the situation so far is assigning a specific IP and DNS to the computer's connection. This did not help. I've since restored the automatic assigning feature.

I'd appreciate any help that anyone can provide, especially suggestions of what might be causing this problem, and what might be done to fix it.

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February 6, 2006 at 12:34:00
hmm little tip i found that might help is go into the comand line. by either finding it on the menu or typeing cmd in the run option in the start menu. then once you get the black dos prompt.
type in ipconfig /renew and hit enter.
This might work or not. i had a problem where when my mate shut down his computer i lost the internet conection for no reason and this helped. So it could be the same type of problem as yours.

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February 7, 2006 at 03:27:08
I had a similar problem with my BT Router Wireless Internet Connection. Finally after much diagnosis, I decided to unstalled my Norton Symantec Internet Security 2006 prg & find that since then (approx 3 day ago) I have had no problems in receiving the internet connection (so far), however this is risky without internet security & so I now need to work out how to configure my Security so is receives the wireless router,
Best of luck with yours

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February 7, 2006 at 07:33:50
Thanks for the suggestions! I think I need more help, though, because my computer is exhibiting a new symptom.

This morning when I brought my computer out of hibernate and tried to get online via the wireless card, I had the same trouble: no internet access, but whereas the wireless connection usually perpetually searches for a network address, this time, the wireless connection icon showed an active connection; the properties window said that I had all the necessary addresses and that I had a full strength connection. All this, and still no page loads or email download.

When I tried lordmanhamer's suggestion of manually renewing the IP address, I received a response saying: "No operation can be performed on Local Area Connection while it has its media disconnected."

I have no idea what media it's refering to; my card was connected and the network seemingly recognized it.

Any ideas?


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Related Solutions

February 7, 2006 at 10:13:37

From what i have read,power schemes using hibernate, etc, sometimes do more harm than good as in your case.Hopefully you will work out these problems, but you might just have to change these settings and if not using your computer for awhile, just turn it off.
Susan.Sounds like its your norton firewall that isn't configured properly and is blocking all internet access.Install Norton again and disable the firewall for now to see if you can connect.

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February 7, 2006 at 14:55:01
Murr - Thanks for the advise, I will install my Norton again without Firewall this time, fingers crossed it works!
and Good luck to David,hope you manage to fix your internet connections!

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February 9, 2006 at 09:03:32
I think the problem is Zone Alarm. My browser cannot load when it's on, but once I turn it off, I have no problem.

Any idea what in the settings would be causing this? I have already made sure the browser has permission to access the internet. Beyond that, I can't see what the problem it.

And I've tried restarting Zone Alarm, but doesn't help.


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February 9, 2006 at 09:48:51
Tried zonealarm pro for 1 day and yanked it.Got tired of having to re-enable settings that i already had taken care of.They should of stuck to refining their firewall instead of putting together a security suite that includes a poor AV.Get Kerio with web blocking features.

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March 6, 2006 at 11:04:33

I have the exact same problem but I don't have Zone Alarm installed, so I don't think this is the culprit. I haven't found a solution yet, but you can save a little time by logging off and then logging back on again instead of rebooting to re-establish internet connectivity.

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