AppStudio 8.3.0.1 is now available.
You won’t notice any changes, but it makes less demands on the VoltBuilder server so it will run better.
Please install it - go to Check for Updates on the Help menu.
Amazon AWS is TOO slow, more then 2 hours to download update and 50% done 
Seems there is a route problem maybe inside US, the ping time go from 4 to 113 ms in telia.net route, routing online, routing from brazil this gap is from IP 5.53.5.165 and 94.142.119.188
strange :
online
4) mow-b4-link.telia.net (62.115.145.64) 4.066 ms 4.117 ms 4.099 ms
5) s-bb3-link.telia.net (62.115.116.232) 113.042 ms 112.636 ms 112.639 ms
7 * hbg-bb3-link.telia.net (213.155.130.100) 119.657 ms *
real from brazil
7 12 ms 7 ms 7 ms 5.53.4.54
8 114 ms 122 ms 117 ms 94.142.98.157
9 * 126 ms 134 ms 5.53.5.165
Just timed it here (Toronto): 2 seconds.