Archived from groups: microsoft.public.win2000.dns (
More info?)
J <sorrynospam@nowhere.com> wrote:
> Browsing most all web pages works fine. If I go to www.google.com,
> it works fine. mail.google.com works fine. But, if I try
> groups.google.com, after a period of time I get the "DNS error" web
> page. If I do a nslookup on groups.google.com I get an ip address.
> If I use that ip address in my browser, it will work. (Other
> machines on our network do not experience this same problem.)
>
> Since nslookup works, why can't the browser resolve these problem web
> pages? Any why does 99% of all web pages work fine?
Did you check your hosts file?
groups.google.com resolves to four IP addresses, which one is "that ip
address in my browser, it will work" ?
Because I can't connect using an IP address.
The "DNS error" web page is a generic error and is displayed whenever the
web site cannot be connected to at the IP address. This is the same error
you recieve if you have an MTU problem try this ping -f groups.google.com -l
1500 if you get "Packet needs to be fragmented but DF set" reduce the packet
size until the ping is returned or it timesout, If it time out first,
continue reducing the packet size until the ping returns. Once the ping
returns that is your MTU (+28 bytes) you need to set you adapter to that MTU
in the registry.
MTU problems are common if you have a PPPoE connection to the internet (Most
DSL connections use PPPoE) I had a client a few days ago the had the same
problem with a lot of sites, It turned out the PPPoE connection was 878
bytes, which was causing problems with NAT.
I increased the PPPoE to 1480 bytes (Max for PPPoE) and reduced the MTU on
the client's NICs to 1480 bytes, problem solved!
--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
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