telnet port 1433 blocked

My actual problem is this Runtime error on my application:

"An error has occurred while establishing a connection to the server.  When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"

I have gone through lots of instructions and steps:
>ask your ISP to enable TCP/IP to allow remote connections on the SQL2K5 server
>ISP (webprovider): Please run the below command and paste us the result.
telnet 1433
>Telnet can't connect to this IP
>ISP (web provider): Some ISPs block outgoing port 1433, please contact your ISP and ask them to open the port for you.
>ISP2 (Internet Provider): We do not block anything. It depends on your local computer's settings. Or you may call Microsoft ...
...Now I don't know what to do? Any hints or help please?

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

check your computer firewall configure it to allow port 1433 this is default port for sql server.

i mean the client computer.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.