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Francis Tran

SCCM Adding Primary Site Error Connection to Central Site SQL Database

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SCCM setup failed to establish a connection to the SQL Server for the Central Administration Site ...

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On the Primary Server :  Test Test-NetConnection C-CAS01.contoso.com -port 1433

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On the Central Site Server: Netstat -a | find /I “1433”

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Result is good, that mean it is not SQL problem, 

Check if  proxy or FW blockage:

Go to Windows Firewall and turn it off:

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Test again  :

Test-NetConnection C-CAS01.contoso.com -port 1433

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Now SCCM Setup should be good again!

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is there a question?

You do know that you don't need a CAS unless you have 150000 computers. 

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