2001 Error Starting Host Server

Is your SQL connection string using a port number by any chance?

Hi,

We are also facing the same issue, and our connection string has a port number. Any resolution for this error?

Hi,

is the connection string to the SQL server windows authentication? If not try to change it  to windows authentication

wish it helps

Is this 14 database schema with a "K2SQLUM" database, or a single consolidated "K2" database?  Is the SQL server name correct?

How does the SQLUM Security Label look in the [HostServer].[SecurityLabel] table?

http://help.k2.com/onlinehelp/K2blackpearl/ICG/4.6.9/webframe.html#SQL_User_Manager.html

I'm curious if this happened after running the database consolidation tool and then reconfiguring it to point to the new K2 database.  I had the same issue a and ended up just deleting the SQLUM security label as I wasn't using it. The security label wasn't updated by the reconfiguration.

Similar issue & solved: https://community.k2.com/t5/K2-Blackpearl-Forum-Posts/Error-Cannot-open-database-K2SQLUM-requested-by-the-login/m-p/58275/highlight/false#M15650