Avatax is installed in Quickbooks on a terminal server environment. Sometimes it will start normally and other times will error out with a CB-201 error.
Quickbooks all versions. Avatax all versions.
Upon startup, Accountant center was enabled to start which sometimes prevented Avatax from completing its initialization. Fairly slow system contributing to timing issue with load. Disabling Accountant center from loading on startup allowed reliable startup for Avatax.