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Mirroring failed due to invalid connection string Expand / Collapse
Posted Friday, March 1, 2013 1:07 AM


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Last Login: Tuesday, August 25, 2015 9:23 PM
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I'm receiving the following error:

ALTER DATABASE command failed due to an invalid server connection string.

when I issue the command:


Situation - I'm attempting to mirror from a default instance to a named instance. Each instance is running SQL 2012 SP1. Each server is in a different domain and I have configured logins and certificates to make it work properly. I've seen several posts indicating try the following:

- check that both servers can be pinged, name resolves and telnet succeeds to the configured port 5022.
- confirm that mirroring is started and logins are granted permission.
- restore database and transaction log with NORECOVERY option.
- Confirm the database and instance are correct.
- Attempt connection without the instance name.
- Start the Browser service on all nodes.

None of these appear to be providing a different result except for the later which complains "network address cannot be reached" (note telnet to 5022 does work).

Any assistance is most appreciated. I'm out of ideas.

Post #1425386
Posted Tuesday, March 5, 2013 1:52 PM

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Last Login: Tuesday, March 29, 2016 10:39 AM
Points: 942, Visits: 1,089
In the database mirroring endpoints do not specify the instance name. Should be http://servername.fqdn:port.


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