Weird internet access

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Guest

Greetings,

We have a WIN2K server running RAS and NAT for the internal client internet
access. Everything has worked fine up until a few days ago when all of a
sudden some sites that users could get to were not reachable, instead we
would get "Page could not be displayed." Other pages come up fine, just as
always. DNS is not the issue as all names get resolved fine. No
configurations were changed, it seemed to happen overnight.

I have run out of ideas in troubleshooting this issue, so I'm hoping
somebody else might have some ideas.

Thanks in advance,

Mike
 
I'm affraid that this is a real internetissue. The
problem lies somewhere between you and the webservers
(routers, etc...) I once solved a problem like this by
changing the MTU-size on the firewall we had installed.
After taking contact with the company hosting the website,
they said they had done some modifications on their
network. So try playing with the MTU-size. On an other
occasion, however, this didn't solve the problem.
 
Blades,

Thanks for the reply. I just got it figured out. I had installed SQL SP3
on that machine, which puts a registry key in the TCPIP Parameters limiting
outgoing traffic to ports 1433 and 1434. Once I removed the key, the problem
was solved.

Mike
 
blades said:
I'm affraid that this is a real internetissue. The
problem lies somewhere between you and the webservers
(routers, etc...) I once solved a problem like this by
changing the MTU-size on the firewall we had installed.
After taking contact with the company hosting the website,
they said they had done some modifications on their
network. So try playing with the MTU-size. On an other
occasion, however, this didn't solve the problem.



internal client internet


ago when all of a


reachable, instead we


come up fine, just as


fine. No


I'm hoping
Click to expand...
Hello Mike
I had this exact problem with pages such as Yahoo and Google, I was
informed by the DNS newsgroup to make sure that "secure cache against
pollution" in the DNS configuration was checked. Sure enough it wasnt,
after enabling it this issue never occured.
HTH,
Altria
 
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