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Windows Firewall blocking SQL over VPN.

Posted on 2013-10-28
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Last Modified: 2013-11-03
I'm trying to get an SQL program to connect from a Windows 7 client machine connected to an SBS 2008 box via VPN. The remote machine is not connected to the domain itself. I've made the VPN a work network, and opened created Windows Firewall rules to allow the relevant ports through (the software has a custom TCP port and the standard SQL UDP port).

I know it's Windows Firewall related, because the moment I turn it off the program works, it just won't connect when it's on, even with the ports opened.

Anyone got any ideas?

Cheers! Sam
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Question by:icemedia
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by:Brian Pringle
ID: 39606181
Do you know what all ports is uses?
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by:PadawanDBA
ID: 39606601
What ports did you allow in windows firewall?  Also, is this a default instance or a named instance of SQL server?
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by:icemedia
ID: 39609303
It's SQL2005, named instance. The instance uses SQL authentication, and TCP port 14330 and UDP port 1434. I've opened those up in Windows Firewall, but it still won't connect.
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Accepted Solution

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icemedia earned 0 total points
ID: 39609372
Fixed it myself. I'd set my firewall rules to allow the configured ports, but hadn't taken into account that SQL actually uses another dynamically assigned port which was being blocked. I amended my firewall rules to include all ports and locked the rules down to the specific program, and that's working fine now, Cheers everyone who posted.
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Author Closing Comment

by:icemedia
ID: 39619696
I fixed this issue myself after some further testing.
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