"Robert L [MS-MVP]" wrote:

> When the computer can't access the internet, can you ping a public IP? If yes, can you ping yahoo.com? This troubleshooting may help,
>
> How to troubleshoot internet access issues How to troubleshoot the Internet Access issues. You just setup a network and all networking computers can see each other. However, you have one of some ...
>       www.howtonetworking.com/Internet/internetaccess0.htm 
>
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
>   "Craig" <Cr***@discussions.microsoft.com> wrote in message news:7DB601D5-420C-478F-933F-D0035DD64063@microsoft.com...
>   I have 2 computers on my home network, connected in a complicated way, but it
>   works reliably for one computer and not the other. Both computers running
>   Windows XP Pro, SP2  and all of the latest updates.
>   My setup is thus, from ISP a wireless radio router from my ISP (I can't get
>   DSL, cable or other here, so have to go this way), connected to a Sunrocket
>   VOIP router, connected to a Belkin Wireless router. So I have a couple of NAT
>   interfaces inbetween me and the internet. However, the computer I am on now,
>   works reliably and has yet to give me any problems. The other computer, not
>   hardware identical, but software it is pretty much identical, sometimes I can
>   connect to the internet, other times I cannot. The other strange things is
>   that the other computer is always on the internal networks, which means I can
>   access files from either computer. I'll gladly give more information, but
>   wanted to know at least a starting point on this.
>
>   Thanks
>   Craig
>

  "Robert L [MS-MVP]" wrote:

  > When the computer can't access the internet, can you ping a public IP? If yes, can you ping yahoo.com? This troubleshooting may help,
  >
  > How to troubleshoot internet access issues How to troubleshoot the Internet Access issues. You just setup a network and all networking computers can see each other. However, you have one of some ...
  >       www.howtonetworking.com/Internet/internetaccess0.htm 
  >
  >
  > Bob Lin, MS-MVP, MCSE & CNE
  > Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
  > How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
  >   "Craig" <Cr***@discussions.microsoft.com> wrote in message news:7DB601D5-420C-478F-933F-D0035DD64063@microsoft.com...
  >   I have 2 computers on my home network, connected in a complicated way, but it
  >   works reliably for one computer and not the other. Both computers running
  >   Windows XP Pro, SP2  and all of the latest updates.
  >   My setup is thus, from ISP a wireless radio router from my ISP (I can't get
  >   DSL, cable or other here, so have to go this way), connected to a Sunrocket
  >   VOIP router, connected to a Belkin Wireless router. So I have a couple of NAT
  >   interfaces inbetween me and the internet. However, the computer I am on now,
  >   works reliably and has yet to give me any problems. The other computer, not
  >   hardware identical, but software it is pretty much identical, sometimes I can
  >   connect to the internet, other times I cannot. The other strange things is
  >   that the other computer is always on the internal networks, which means I can
  >   access files from either computer. I'll gladly give more information, but
  >   wanted to know at least a starting point on this.
  >
  >   Thanks
  >   Craig
  >

>I have 2 computers on my home network, connected in a complicated way, but it
>works reliably for one computer and not the other. Both computers running
>Windows XP Pro, SP2  and all of the latest updates.
>My setup is thus, from ISP a wireless radio router from my ISP (I can't get
>DSL, cable or other here, so have to go this way), connected to a Sunrocket
>VOIP router, connected to a Belkin Wireless router. So I have a couple of NAT
>interfaces inbetween me and the internet. However, the computer I am on now,
>works reliably and has yet to give me any problems. The other computer, not
>hardware identical, but software it is pretty much identical, sometimes I can
>connect to the internet, other times I cannot. The other strange things is
>that the other computer is always on the internal networks, which means I can
>access files from either computer. I'll gladly give more information, but
>wanted to know at least a starting point on this.
>
>Thanks
>Craig

"Chuck" wrote:

> On Fri, 18 Aug 2006 07:45:22 -0700, Craig <Cr***@discussions.microsoft.com>
> wrote:
>
> >I have 2 computers on my home network, connected in a complicated way, but it
> >works reliably for one computer and not the other. Both computers running
> >Windows XP Pro, SP2  and all of the latest updates.
> >My setup is thus, from ISP a wireless radio router from my ISP (I can't get
> >DSL, cable or other here, so have to go this way), connected to a Sunrocket
> >VOIP router, connected to a Belkin Wireless router. So I have a couple of NAT
> >interfaces inbetween me and the internet. However, the computer I am on now,
> >works reliably and has yet to give me any problems. The other computer, not
> >hardware identical, but software it is pretty much identical, sometimes I can
> >connect to the internet, other times I cannot. The other strange things is
> >that the other computer is always on the internal networks, which means I can
> >access files from either computer. I'll gladly give more information, but
> >wanted to know at least a starting point on this.
> >
> >Thanks
> >Craig
>
> Craig,
>
> From what you've described, an MTU setting is a good candidate.
> <http://nitecruzr.blogspot.com/2005/06/internet-connectivity-problems-caused.html>
> http://nitecruzr.blogspot.com/2005/06/internet-connectivity-problems-caused.html
>
> If that's not it, try and describe "sometimes I can connect to the internet,
> other times I cannot" in a bit more detail.  How often does this problem occur?
> Any pattern to it?  Have you tried the same website from the other computer,
> when you're having this problem with any website on this computer?
> <http://nitecruzr.blogspot.com/2005/06/background-information-useful-in.html>
> http://nitecruzr.blogspot.com/2005/06/background-information-useful-in.html
> <http://nitecruzr.blogspot.com/2005/08/solving-network-problems-tutorial.html>
> http://nitecruzr.blogspot.com/2005/08/solving-network-problems-tutorial.html
>
> --
> Cheers,
> Chuck, MS-MVP [Windows - Networking]
> http://nitecruzr.blogspot.com/
> Paranoia is not a problem, when it's a normal response from experience.
> My        email         is          AT         DOT
>    actual       address    pchuck       mvps        org.
>

>I have 2 computers on my home network, connected in a complicated way, but it
>works reliably for one computer and not the other. Both computers running
>Windows XP Pro, SP2  and all of the latest updates.
>My setup is thus, from ISP a wireless radio router from my ISP (I can't get
>DSL, cable or other here, so have to go this way), connected to a Sunrocket
>VOIP router, connected to a Belkin Wireless router. So I have a couple of NAT
>interfaces inbetween me and the internet. However, the computer I am on now,
>works reliably and has yet to give me any problems. The other computer, not
>hardware identical, but software it is pretty much identical, sometimes I can
>connect to the internet, other times I cannot. The other strange things is
>that the other computer is always on the internal networks, which means I can
>access files from either computer. I'll gladly give more information, but
>wanted to know at least a starting point on this.
>
>Thanks
>Craig

"Steve Winograd [MVP]" wrote:

> In article <7DB601D5-420C-478F-933F-D0035DD64***@microsoft.com>, Craig
> <Cr***@discussions.microsoft.com> wrote:
> >I have 2 computers on my home network, connected in a complicated way, but it
> >works reliably for one computer and not the other. Both computers running
> >Windows XP Pro, SP2  and all of the latest updates.
> >My setup is thus, from ISP a wireless radio router from my ISP (I can't get
> >DSL, cable or other here, so have to go this way), connected to a Sunrocket
> >VOIP router, connected to a Belkin Wireless router. So I have a couple of NAT
> >interfaces inbetween me and the internet. However, the computer I am on now,
> >works reliably and has yet to give me any problems. The other computer, not
> >hardware identical, but software it is pretty much identical, sometimes I can
> >connect to the internet, other times I cannot. The other strange things is
> >that the other computer is always on the internal networks, which means I can
> >access files from either computer. I'll gladly give more information, but
> >wanted to know at least a starting point on this.
> >
> >Thanks
> >Craig
>
> When the problem occurs, can the unreliable computer access some web
> sites but not others?  If so, this could fix it:
>
> 1. Find the right MTU setting, as shown here:
>
> http://www.annoyances.org/exec/show/article04-107
>
> 2. Make the setting manually on the client computers, or use
> DrTCP to make it:
>
> http://www.dslreports.com/front/drtcp.html
>
> Otherwise, please reply with full details of the problem.  We only
> know as much as you tell us.
> --
> Best Wishes,
> Steve Winograd, MS-MVP (Windows Networking)
>
> Please post any reply as a follow-up message in the news group
> for everyone to see.  I'm sorry, but I don't answer questions
> addressed directly to me in E-mail or news groups.
>
> Microsoft Most Valuable Professional Program
> http://mvp.support.microsoft.com
>