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Unable to start the Transact-SQL debugger, could not connect to the database engine instance

I have been trying to run debugging within SQl server management studio and for some reason the debugger has just stopped working.

This is the message I get:

Unable to start the Transact-SQL debugger, could not connect to the
database engine instance ‘server-sql’. Make sure you have enabled the
debugging firewall exceptions and are using a login that is a member
of the sysadmin fixed server role. The RPC server is unavailable.

Before this I get two messages, one requesting firewall permissions and the next says ‘usage’ with some text that makes little sense.

I have looked at the other similar answers on there for the same message which suggest adding the login as a sysadmin but that is already set. I also tried adding sysadmin to another account but that also didn’t work.

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Answer

In the end I was able to start it by right clicking and selecting run as administrator.

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