We are having trouble with a customer's site that is having trouble
receiving Firebird connections over the Internet. The machine/app
making the connection to the database can connect to other
servers/sites just fine. The server in question (actually two
different servers at the same site) can receive connections from
within the LAN just fine. Also, a port scan from the client site
shows that port 3050 is open. They are running FB 1.0.

However, if a connection is attempted to either of the servers from a
remote site over the Internet, the client machine gets the following
error:

ISC ERROR CODE:335544721
ISC ERROR MESSAGE:
Unable to complete network request to host "xxx.xxx.xxx.xxx".
Failed to establish a connection.
The system could not find the environment option that was entered.
(I removed the IP address above for our client's privacy)

Since the servers can receive connections from within the LAN, it does
not seem to be an issue with the server machines themselves.

The site in question uses HughesNet satellite Internet, with a HN9000
satellite modem. We removed their router from the equation, and
hooked the server up directly to the satellite modem, and we get the
same error. The satellite modem does NOT have a built in firewall,
and has no user-accessible settings on it. We do have other customers
using HughesNet without this problem.

Help!!!!!!

-Joe