ECG–UG–14-002 REVISION DATE PAGE30XAXWBACnet Option Rev G December 2016 55 OF 56Back to Beginning of Chapter – Table of Contents8 BACNET OPC-SERVER TROUBLESHOOTING8.1 BACstac installation errorThe following BACstac installation error may occur at BACstac installation and/or atBACnet OPC server start-up.CAUSE: BACnet stac Router may be missing in the installation package.SOLUTION: To fix the BACstac installation problem, check whether the BACstacRouter in visible in the list of aplications in Control Panel.To verify whether the BACstac OPC-Server application is installed:1. In Control Panel, click "Programs and Features".2. The list of all programs installed on the computer is displayed.3. Find "BACstac Router".4. If the BACnet stac router is missing, (re)install BACnet OPC-Server applicationfrom MBS CD or use the 7.1.0.3 release version (16.4 MB).