troubleshooting Question

Cannot connect to port 1433

Avatar of FlynnKeilty
FlynnKeiltyFlag for United States of America asked on
Software FirewallsMicrosoft SQL Server 2005TCP/IP
2 Comments2 Solutions1200 ViewsLast Modified:

I am trying to get my head around this issue from a resolution and understanding point.
We have sql 2005 installed on a Windows 2008 server.
We will be connecting to the server from 1 desktop running an application.
The application connects using port 1433.
Windows firewall is not running on the server or workstation.
We have trend micro worry free business 6 running on the server and workstation and across the network.
I cannot telnet to port 1433 from the workstation or server, nor will it connect using ' telnet localhost' on the workstation or the server.
I've disabled trend firewall manually and was able to connect via a db connect tool on the server.
I've completely unloaded trend on the server and telnet still fails.
I've enabled the trend firewall and made an exception for 1433 and it still fails.

Here are my questions:

1. The application maker wants us to test the port on the local workstation, though without sql there, will it always fail on the workstation because sql is not listening?

2. Can anyone shed any light on how to forcibly open the port on the server?
(Or for trend experts, is there another way to add an exception in Trend?)
I do not want to uninstall the trend firewall as it causes problems because the server is a vmware guest, I also do not want to uninstall it for security reasons.

Thank you.
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