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I need to remove TLS 1.0 from one of my SQL servers. When I do so and then reboot the server the SQL services dont start automatically. When I attempt to start them I get an error that it cant be done. Once I renable TLS 1.0 the SQL services start again after a reboot.

Im running SQL 2012 Developer edition. Version is 11.0.2100.60

Im using IIS crypto to remove TLS. I keep TLS1.1 and 1.2 on there

Has anyone got a suggestion of what I can do to have the SQL services start when I remove TLS 1.0

Thanks

marked as duplicate by Randi Vertongen, kevinsky, Sean Gallardy sql-server Apr 16 at 14:08

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  • Please see if there are any errors recorded in the SQL Server error logs, or Windows Application Event Log. – Tony Hinkle Apr 16 at 11:33
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You have to patch the sql server instance to a newer version to be able to use TLS 1.2

Take a look at TLS 1.2 support for Microsoft SQL Server

Either patch at least to SP2 CU10 (preferably a higher CU) or SP3 CU1.

When patching to SP3 CU1

You would still be 9 CU updates behind, the latest CU for SP3 at the time of writing is SP3 CU10.

So when going this route I would go for SP3 CU10 but preferably choose for SP4

Note: TLS 1.2 support is also available in 2012 SP4.

When patching to SP4 (preferred)

In short, simply patching to SP4 would be the preferred option, you have to remember that there is a hotfix out for this Service Pack.

More questions and answers on disabling tls 1.0 and the sql server service not being able to start here and here

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