Have tried yesterday & today to install the new IDE under Windows 8.1 using both IE11 and Google Chrome Version 41.0.2272.118 m, both with a donation & without a donation and I get nothing.
Error message from Google Chrome says "Google Chrome's connection attempt to downloads.arduino.cc was rejected. The website may be down, or your network may not be properly configured."
I put arduino.cc in 'compatibility mode' in IE11 with no success.
Is the server up? Do I need to put in a rule-set to my router or firewall software for arduino.cc downloads? This has never happened to me before and I'm stumped.