dahoma, uth: Can your web browser access both the following locations which appeared in your debug output? https://www.xmos.com/api/get_all_software_xml?&xde_version= https://www.xmos.com/api/get_all_board_support_xml?&xde_ver (Note these URLs seem suspicious - perhaps they were truncated wh...

Could you also tick the checkbox "Disable security certificate checking" (underneath the "Connection timeout" editbox) and upload the logs if it still fails?

I suspect for the first download the quantity of data was small so the default timeout was not exceeded, but for the second download stage the data quantity was large enough to exceed the timeout threshold. Plus, as more boards have been added over time, the likelihood of timeout failure increases i...

Try increasing the timeout by going to the Preferences dialog within xTIMEcomposer: Window => Preferences and selecting from the list on the left xTIMEcomposer Within the region "Online Settings" you will see an edit box labelled Connection timeout (ms) probably with a value 10000 . Try in...