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I get the above error on my server manager where SharePoint (2016 on prem) is running: (SQL 2014 and SP 2016 running on same server Windows 2012 R2)

Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=2; handshake=60067;

Can it be that a SharePoint services in the IIS is started with the wrong account? How do I troubleshoot this?

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Can it be that a SharePoint service in the IIS is started with the wrong account?

In short, No.

I suggest performing IISRESET then check the Application pools staus that should be stopped in case

  • The user password has been changed.
  • The domain user has been deleted.

How do I troubleshoot this?

The Connection Timeout expired error commonly occurs in the following cases:

  • An instance of the SQL Server Database Engine is not running.
  • The SQL Server Browser service is not running.
  • The TCP/IP is disabled.
  • The domain user has been deleted.
  • The server name was typed incorrectly.
  • There are network problems.
  • The TCP/IP port for the Database Engine instance is blocked by a firewall.
  • The client and server are not configured to use the same network protocol.

Check the detail steps to troubleshoot each cause at

  • Thank you Mohamed, I went through the steps on the links you gave and it fixed my problem. – Heste Sep 20 '18 at 9:59
  • @Heste You are welcome, Glad to hear it helped you :) – Mohamed El-Qassas MVP Sep 20 '18 at 10:29

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