connection does not open from SSMS

  • Dear Friends,

    Would be grateful if anybody can advise why one of my servers, doesnt allow a connection anymore from SSMS on my terminal. The IP address is the unchanged. SQL server port was changed I remember, that i am anyways providing in with the IP as IP:portnumber..Thanks in advace.

  • Arsh wrote:

    Dear Friends,

    Would be grateful if anybody can advise why one of my servers, doesnt allow a connection anymore from SSMS on my terminal. The IP address is the unchanged. SQL server port was changed I remember, that i am anyways providing in with the IP as IP:portnumber..Thanks in advace.

    What is the text of the error message you receive?

    The absence of evidence is not evidence of absence
    - Martin Rees
    The absence of consumable DDL, sample data and desired results is, however, evidence of the absence of my response
    - Phil Parkin

  • Since it looks like some amendments were done to port number, did you check firewall settings for this port on server?

  • Shouldn't it be IP, port   (comma not colon) ?

  • Its working with IP and comma. thanks. but still it fails with servername and comma ? any comments

  • thanks everyone for the suggestions

     

    Its working with IP and comma. thanks. but still it fails with servername and comma ? any comments .Its a default instance and the only on that server.thank u.

  • Arsh wrote:

    thanks everyone for the suggestions

    Its working with IP and comma. thanks. but still it fails with servername and comma ? any comments .Its a default instance and the only on that server.thank u.

    If you ping the server name, does it come back with the correct IP address?

    The absence of evidence is not evidence of absence
    - Martin Rees
    The absence of consumable DDL, sample data and desired results is, however, evidence of the absence of my response
    - Phil Parkin

  • If the issue isn't DNS it's probably a Kerberos\SPN issue:

    https://learn.microsoft.com/en-us/sql/relational-databases/native-client/features/service-principal-name-spn-support-in-client-connections?view=sql-server-ver15

    You can use the MS Kerberos tool to check it:

    https://www.microsoft.com/en-us/download/details.aspx?id=39046

    Also, is the SQL Browser Service running?

  • What is the instant name which may include the port number?  Yes, verify/your firewall your firewall rules.  Configure the default port 1433 in your firewall to get around your issue possibly.  Verify your SQL server configuration TCP/IP settings is correct.

     

    DBASupport

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