SQL 2008 Instance not listening on port

Windows 2008 R2 Standard 64 Bit Server SQL 2008 R2 Standard 64 bit

I have three SQL instances running on my server

Instance 1 myswlserver port 1433

Instance 2 Sharepoint port 50135

Instance 3 Production port 49477

Instance 1 and 2 both are listening on ipv4

Instance 3 is not it is only listening on ipv6 I do not use IPV6 yet.

In SSCM I defined static port for both Instance 2 and 3

I am having a problem connnecting to instance 3 from a web site that uses ASP code with a connect string. Been fighting with this for several days.

Then just looked again at my logs and found that instance 3 is not listening on IPV4

My firewall is configured for the ports udp and tcp allowing access both ways also port 1434 is open both ways.

So why is instance 3 only listening on IPV6?

Any ideas on why?

Thanks

Tom

Thomas R Grassi Jr