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Strange Internet Connection Sharing problem

Yzzim

Lifer
I posted this over in Networking but no one responded. I really need help with this ASAP as no one else in the house has internet access.

Recently I've been trying to get my wireless setup working and one night I finally got it. It worked great for a while and then I restarted my computer and everything went to heck. Not sure if this is all related or just a coincidence.

After I restarted my computer I couldn't seem to get an internet connection (my laptop is winxp, the dialup server is win2k). I've got 5 other computers (all running winxp) and none of them could connect either. However, the Win2k (dialup server) machine had no problem surfing the web.

I was browsing the web on the win2k machine when suddenly I got a "svchost.exe" error and it had to be shut down. I restarted the computer and haven't been able to get a stable internet connection since. Every time I would connect to the internet the computer would get very choppy after a minute or so. CPU usuage would spike to 100%, then drop, then spike again, doing this over and over until I would disconnect.

So I thought I would try to connect with my laptop. Created a dialup connection, enabled ICS, connected to the internet and everything was fine on the laptop (no cpu spikes, no disconnects) then after 10 minutes I got the same exact problems.

One thing that did allow me to connect was disabling ICS on my laptop. Then my laptop could connect no problem, and it would stay connected. The second I connect with ICS enabled the CPU usage would spike and I couldn't surf anymore.

That's 2 different machines, using 2 different OSes (win2k and winxp), using 2 completely different modems.

Anyone have any idea what's going on here?

I should also mention that I just updated my virus definitions and did a full system scan and nothing came up.

I've also disconnected all other computers from the network (leaving my laptop plugged into a hub with no other computers connected to it) and the problem still persists, so I doubt another computer is causing the problem..?

 
Get the following:

- latest WiFi NIC drivers
- new WAP firmware update
- Win2K/XP "Advanced Networking" upgrade including WEP128 patch - I recall there being issues with some hardware

- M4H
 
oh, forgot to add that I removed the wifi card from the laptop and disconnected the wap from the network and still have the same problems.

I've recently (a couple days ago) ran Windows Update and downloaded all the newest software/drivers possible.
 
I disconnected my computer (the one with the dialup connection) from the hub and now everything works fine. However, whenever I plug the connection to the hub in, my cpu use spikes and then the dialup connection drops.

Anyone have any idea what the problem is?
 
The only 2000 computers i've seen recently that "suddenly had SVCHOST cause errors" had the Blaster worm. Try running the Symantec fix.

The only help my brain can offer at such a late hour, i'm off to bed.


Confused
 
Reboot your server. Install all recent patches/updates. Scan for viruses/trojans/adware. Once the host is up and clean renew the IP leases on the clients or just reboot them. Make sure that the clients are indeed connecting to the appropriate WAP. Also make sure WEP is enabled. 🙂
 
Originally posted by: Yzzim
I disconnected my computer (the one with the dialup connection) from the hub and now everything works fine. However, whenever I plug the connection to the hub in, my cpu use spikes and then the dialup connection drops.

Anyone have any idea what the problem is?

You probably just answered your question. Your hub might be going bad.

 
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