Problem is sorted out, In my case Sql ports were blocked in Local Security policies(win2008 server).

Click on below link to find out how to open ports for sql...

I give 1500 under IP All only but IPv4 still hav 1433 port on it do i need to change it too and what i hav to enter in Server...

On server its SQL server Express edition 2008 is install and i installed SQL Enterprise edition 2008 on another machine windows server 2008 i try to access that in LAN...

Congrats VPilli,

what i find is:

MsDtsSrvr.exe file is missing in 100/DTS/Binn folder and i think i hav to reinstall the SQL Server 2008:crying:

I already tried with custom port but it...

I checked it, its 1433 everywhere in TCP/IP properties.

It is default Instance.

TRIED:

servername,4711

RESULT:

A network-related or instance-specific error occurred while establishing a

connection to SQL Server. The server was not found or was...

Once again thanks for your quick response.

I did before:

I telnet 1433 and 1434 both ports on client but connection failed. i tried on 8443 (Plesk port) on same server it...

Thank you so much for ur response.

Yes i got below different error msg when i try with Port no

""A network-related or instance-specific error occurred while establishing a connection to SQL...