For example, if SQL Server is running on the default port of 1433 and your machine name is MACH123, a port forwarding entry will need to be made to forward port 1433 over TCP/IP to MACH123 in your router. Mar 14, 2017 Enable or Disable a Server Network Protocol.; 3 minutes to read; Contributors. In this article. APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse All network protocols are installed by SQL Server Setup, but may or may not be enabled.
Hey Daniel,very nice article!One comment: Many enterprise firewalls are blocking the UDP-Ports. By default SQL-Server-Browser-Services use UDP-Port 1433.
System administrators are not very happy when you ask them to open UDP-Ports, because they are frequently used for cyber-attacks.If SQL-Server-Browser-Services are not available, you cannot find the named instance of you server. An easy workaround is to append the TCP-Port of your server instance (in this case 1433) to the server address (e.g. 234.567.123.23, 1433)Not using SQL-Server-Browser-Services and blocking UDP-Ports makes systems much safer at no cost of usability.cheers. I've done all of this and I'm still getting the errorTITLE: Connect to Server——————————Cannot connect to THEDARSHTOPMSSQLSERVER.——————————ADDITIONAL INFORMATION:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections.
(provider: SQL Network Interfaces, error: 25 – Connection string is not valid) (Microsoft SQL Server, Error: 87)For help, click:——————————The parameter is incorrect——————————BUTTONS:OK——————————. Hey Daniel,very nice article!One comment: Many enterprise firewalls are blocking the UDP-Ports. By default SQL-Server-Browser-Services use UDP-Port 1433. System administrators are not very happy when you ask them to open UDP-Ports, because they are frequently used for cyber-attacks.If SQL-Server-Browser-Services are not available, you cannot find the named instance of you server. An easy workaround is to append the TCP-Port of your server instance (in this case 1433) to the server address (e.g. 234.567.123.23, 1433)Not using SQL-Server-Browser-Services and blocking UDP-Ports makes systems much safer at no cost of usability.cheers.