I'm trying to get some data from external content type from SQL server by using my windows identity, but when I add a new connection in SPD, and choose user's identity to connect, a error message pop up stating this:

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I confirmed there were no typo in sever name and DB name as I used them in data source page(I was able to add my SQL server as a data source with a user's sql login).

I confirmed my windows identity has permission to access my SQL server since I was able to log in to SQL server management studio and view tables with my windows authentication.

So, what's potentially causing this problem, and how should I troubleshoot/fix it? Thank you!

  • can you check the logs for potential error?
    – Waqas Sarwar MVP
    Jul 14, 2015 at 14:24
  • are you accessing the site with your user identity? that might be an issue
    – Waqas Sarwar MVP
    Jul 14, 2015 at 14:26
  • @ Waqas Sarwar MCSE, I'm checking the log, yes, I'm accessing the site with my user identity, but it's same as my windows credential.
    – SSilicon
    Jul 14, 2015 at 14:36

1 Answer 1


You need to check the Uls Logs(may be enable the verbos for BCS) and also check the Application logs on sharepoint server as well as on the SQL server.

  • Thanks for your help! I resolved this error by set SQL server browser service to automatically start in "service", and in SQL configuration manager, I set "built-in account" of SQL server browser to "network service", and I was able to start the SQL server browser service, and I thus I was able to connect to SQL server from my computer.
    – SSilicon
    Jul 14, 2015 at 20:29

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