One of customer had the xentry error 2221-45 no access authorization when running mercedes MB SD Connect C4 V2017.03 xentry diagnosis software, here is the final solution provided by maketrust2016 engineer.
(2221-45) No access authorization for xentry diagnostic was found on the server,you much contact the user help disk.
Solution from maketrust2016 engineer:
for example, our software comes with windows 7 systerm,if you running windows 7 hard drive,then
Browse to C:\Mercedes-Benz\Xentry\fusoko\eclipse\plugins,delete com.daimler_xentry.diagservice_1.6-0.2016.07181047 file.