Ensure your virus-scanning software is up-to-date, and then perform a full scan of your system and files.

You may need to run a spyware removal tool on your system such as AdAware or SpyBot.

If the above doesn't help, what is the status of the link lights on both the network interface on your computer and on the cable modem when this problem occurs? If you power off the cable modem and computer for about twenty minutes, then power the cable modem on, allow it to connect to the ISP, and then power on your system, do the problems persist?

Cody,

Thanks for the response. I have done all three steps. Actually I shut the monitor, router, and my computer for about 2-3 hr. after running Spybot and updating Norton. Interestingly I have two computers, this one running XP and an older Dell Dimension XPS-233s and I don't have this problem with the latter.  My problem is on my Dimension 8200. Any other suggestions?

What type of network setup do you have?  Are you assigning DHCP addressing from a router or running ICS?

J,

Thanks for the question. I am assuming I am using DHCP addressing because when I look at the Support tab on my local area connection it says. "Address Type Assigned by DHCP", and this IP address is .3 and the Default is .1 When you ask "type" I am using a cable modem>router>2 computers.

Can you check in your Internet settings that its got LAN settings - Autodetect enable.

Find this via - Start -> Control Panel ->Internet Options -> Connections -> LAN settings

Hi Sentinel-Master,

Thanks for your suggestion, but I did verify that it is Autodetect enabled. This is really crazy. All my setting so far look correct. I think it there were some way to remove my network and re-install, that might help. Thanks again for your idea!

No your network settings and card are fine - by the mere fact you can browse the Internet and email etc etc.

Try opening Windows Media Player on your PC - and select the Tools->Options->Network tab, and check that the various network ports are selected UDP, TCP, HTTP & Multicast

 

I checked Windows Media Player and they were all checked. This is really strange. I have the same problem with Quicken 2004. Every time it goes to check an account on the internet it says it cannot detect an internet connection. So it does not seem to be a software problem, I guess? But rather some setting in my computer?

 

Thanks for your great persistence!

This is so weird - can you try disabling any Firewall s/w you have active on the PC and then re-try WMP or Quicken.

Start -> Run -> cmd

Also when you have these Applications open can you issue the command "nbtstat -s" and "netstat", and post the results here for perusal

When I run cmd I presume you want me to also run ipconfig /release? If so when I do I get the following: The operation failed as no adapter is in the state permissible for this operation.

As for the second request, I am sorry but can you help me understand what you mean by "issue the command"?

 

Thanks