I 'd like to use Xpra as described on https://help.ubuntu.com/community/Xpra. However, I'm using the Xpra Windows client to connect but it doesn't work & and I keep getting an error message this server does not require authentication where in my xpra logfile it says:$ tail -f .xpra/:30.log 2016-01-25 13:52:24,277 New connection received: SocketConnection(/home/ron/.xpra/jpax-build07-30) 2016-01-25 13:52:24,279 Disconnecting existing client Protocol(SocketConnection(/home/ron/.xpra/jpax-build07-30)), reason is: this server does not require authentication 2016-01-25 13:52:24,279 Connection lost 2016-01-25 13:52:24,281 Connection lostWhy is  this I'm wondering? I've googled around but couldn't find any helpful information...
why do I get reason is: this server does not require authentication in xpra
x11;xorg;remote