Cannot connect to remote SQL Database with SQL Server Management Console (Error 53) -

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i have opened port 1433 on firewall, every time try , connect remote sql database sql server management console receive (microsoft sql server, error: 53)

https://social.technet.microsoft.com/wiki/contents/articles/2102.how-to-troubleshoot-connecting-to-the-sql-server-database-engine.aspx

http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/

http://blogs.msdn.com/b/walzenbach/archive/2010/04/14/how-to-enable-remote-connections-in-sql-server-2008.aspx

enable remote connections sql server express 2012

short answer

  • check firewall
  • check service running
  • check tcp/ip enabled
  • check sql server properties "allow remote connections"
  • check if sql server on restricted subnet

then run these if not resolve

  • right-click on tcp/ip , select properties.
  • verify that, under ip2, ip address set computer's ip address on local subnet.
  • scroll down ipall.
  • make sure tcp dynamic ports blank.
  • make sure tcp port set 1433.
  • if have named instance must have sql server browser service enabled
  • the browser service runs on port udp 1434 , must allowed through firewall

hail mary pass if still not resolved

  • go client machine, , run cliconfg.exe if named pipes listed first, demote it, , promote tcp/ip.
  • check if firewall blocking named pipes port, 445

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