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Asked: 2026-06-08T13:14:39+00:00

Having trouble connecting to SQL Server 2012 through my router firewall. I opened ports

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Having trouble connecting to SQL Server 2012 through my router firewall. I opened ports 2382 for the SQL Browser and 1433 for the SQL Server. I can connect from the server to itself with the LAN IP address but not using the external router IP. I got some good info from this question.

Opening ports for server instances

I’m using the instance port they mentioned and it works also, but only if I connect from the server to itself using…

Data Source=192.168.1.2,49867;Network Library=DBMSSOCN;Initial Catalog=Characters;

I also can’t connect from another PC on my LAN. Which seems odd. I have disabled the windows firewall on the server just in case.

Thanks for any info!

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1 Answer

  1. Editorial Team

    Check if “Allow remote connections to this server” is enabled under “Server Properties -> Connections” in SSMS

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