http://developers.de/blogs/damir_dobric/archive/2016/12/06/error-when-invoking-device-methoths-on-iothub.aspxSometimes, wen your service code tries to invoke a Device Method, you might get following exception: Device {&quot;Message&quot;:&quot;ErrorCode:DeviceNotOnline;Timed out waiting for device to connect.&quot;,&quot;ExceptionMessage&quot;:&quot;TrackingenCommunityServer 2008 SP1 (Build: 30619.63)http://developers.de/blogs/damir_dobric/archive/2016/12/06/error-when-invoking-device-methoths-on-iothub.aspx#1805737Tue, 17 Jan 2017 08:27:21 GMT7e491611-45ad-4dae-a68f-c4cb64439510:1805737Simon<p>Thanks for this posting! Saved us some time .. ;)</p> <div style="clear:both;"></div><img src="http://developers.de/aggbug.aspx?PostID=1805737" width="1" height="1">