1. Enable named pipes protocol for the SQL Server instance.
     
  2. Open SQL Server Configuration Manager, expand SQL Server Network Configuration and select Protocols for the desired SQL Server instance.  In right-hand pane, double-click TCP/IP protocol, select IP Addresses tab and ensure that IP1 contains appropriate IP Address for desired network interface card and that Active field is set to Yes, and ensure that IP2 Active field is set to No.
Please contact the appropriate software vendor or IT professional for assistance with this process or issue, which is beyond Blackbaud's scope of support.