I am here not to report a problem but to heap praise on the Husarion Support Team for patiently and expertly dealing with a cantankerous old know it all retired engineer. My ROSbot2R is now up and running plus a new trick called Docker that this old dog learned. I plan to frequent the community and hope to help some day. Thanks for welcoming me with a cool robust robot car and excellent technical support. Jan, Hubert, Filip tasted my bitterness but we all solved the problem together.