[winswitch] get connection timedout: when connectinh from Windows

[Ron Eggler]

Hi,

I have xpra version xpra v0.15.8 on a headless Linux (Ubuntu 16.04.6 LTS)
server an am attemting to connect from a Windows client (version 2.5.1) and
it does not seem to connect, I get the following in the logs:
$ tail -f /home/ron/.xpra/:9999.log
2019-04-22 09:48:32,364 New unix-domain connection received
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/server/server_core.py", line
535, in _process_hello
    auth_caps = self.verify_hello(proto, c)
  File "/usr/lib/python2.7/dist-packages/xpra/server/server_core.py", line
625, in verify_hello
    authlog.warn("Warning: client expects a challenge but this connection
is unauthenticated")
NameError: global name 'authlog' is not defined
2019-04-22 09:48:42,366 connection timedout:
Protocol(SocketConnection(/home/ron/.xpra/jpax-build07-9999))
2019-04-22 09:54:43,123 New unix-domain connection received
2019-04-22 09:54:43,129 Connection lost
2019-04-22 11:21:41,075 New unix-domain connection received
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/xpra/server/server_core.py", line
535, in _process_hello
    auth_caps = self.verify_hello(proto, c)
  File "/usr/lib/python2.7/dist-packages/xpra/server/server_core.py", line
625, in verify_hello
    authlog.warn("Warning: client expects a challenge but this connection
is unauthenticated")
NameError: global name 'authlog' is not defined
2019-04-22 11:21:51,083 connection timedout:
Protocol(SocketConnection(/home/ron/.xpra/jpax-build07-9999))

Why is trhis and how can I get around it?

Thanks