Working on versions: IDE:184.108.40.2064, Runtime: 220.127.116.114. Since the current version I could not export to UWP target anymore. In the log I have the following informations: I suppose my Device Portal is set up correctly. I can login to it via browser and it was working previously on version 2.2.3. User Name, Host Name, Password have not changed. I don't think that something is blocking connection to Device Portal. Nothing special has changed in my system since then - except the GMS version.. Does someone experience such problem? I would know before I file the bug. Thanks.