browsing problems

[Joe Janson]

I have two networks connected to the Internet each
through its own router and cable/DSL modem. All obvious
settings on both networks appears to be the same,
including browsers, security, router settings, etc.
However on one of the networks, none of the users can
access certain sites. As an example, the commonly-used
site www.usps.gov, click on Calculate Postage, then click
on Calculate Domestic Postage. Here's the next URL

http://www.usps.com/tools/calculatepostage/welcome.htm?
from=global&page=0061calculatepostage

You will be forwarded to a site called

postcalc.usps.gov

Anyone on the first network can then go on to calculate
postage. However on the second network, users click on
calculate domestic postage, or international postage, or
any number of other links and nothing happens until the
link times out and "This Page can not be Displayed" comes
up.

Any ideas what could be causing this?

 

[Robert Aldwinckle]

postcalc.usps.gov

Sounds like a DNS problem. E.g. the failing network has a different
DNS server which doesn't know about that server.

You can test the idea by using ping -n 1 or nslookup in a Command
window.

If the address is not found or if it is always slow being found
you could put an entry for it in the machine's HOSTS file.

FWIW here is what my nslookup gives for that name:

Non-authoritative answer:
Name: postcalc.usps.gov
Address: 56.0.78.21

So your HOSTS entry would look like

56.0.78.21 postcalc.usps.gov


Good luck

Robert Aldwinckle