net/linux-nx-client: problems connecting to server

[Daniel Underwood]

I *can* connect to the server on my Ubuntu machine, but not on my
FreeBSD machine.

When trying to connect to my nx server (on a RHEL5 machine), I am able
to authenticate successfully but at the "negotiating link parameters
step", an error dialog box opens asking if I want to terminate the
connection because it cannot connect to the server proxy.  The
"details" shows this text (X's used to hide IP):

[BEGIN DETAILS]

NXPROXY - Version 2.1.0

Copyright (C) 2001, 2006 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '2913'.
Session: Starting session at 'Thu Jul 30 18:19:13 2009'.
Info: Connecting to remote host 'XXX.X.XX.XX:5012'.
Info: Aborting the procedure due to signal '15'.
Session: Session terminated at 'Thu Jul 30 18:20:08 2009'.

[END DETAILS]

Trying to resolve this, I then enabled the "enable SSL encryption of
all traffic", but the connection times out, with the following
details:

[BEGIN DETAILS]

NXPROXY - Version 2.1.0

Copyright (C) 2001, 2006 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '2985'.
Session: Starting session at 'Thu Jul 30 18:25:19 2009'.
Error: Failed to set TCP_NODELAY flag on FD#13 to 1. Error is 22
'Invalid argument'.
Warning: Connected to remote NXPROXY version 3.3.0 with local version 2.1.0.
Warning: Consider checking http://www.nomachine.com/ for updates.
Info: Synchronizing local and remote caches.
Info: Handshaking with remote proxy completed.
Warning: Failed to set IPTOS_LOWDELAY flag on FD#13. Error is 92
'Protocol not available'.
Error: Failed to set TCP_NODELAY flag on FD#13 to 1. Error is 22
'Invalid argument'.
Info: Using LAN link parameters 1536/24/1/0.
Info: Using image streaming parameters 50/128/1024KB/6144/768.
Info: Using image cache parameters 1/1/131072KB.
Info: Using pack method '16m-jpeg-9' with session 'unix-gnome'.
Info: Using product 'LFE/None/LFEN/None'.
Info: Not using NX delta compression.
Info: Not using ZLIB data compression.
Info: Not using ZLIB stream compression.
Info: Not using persistent cache.
Info: Listening for font server connections on port '11014'.
Session: Session started at 'Thu Jul 30 18:25:19 2009'.
Error: Failed to set TCP_NODELAY flag on FD#18 to 1. Error is 22
'Invalid argument'.
Info: Established X server connection.
Session: Terminating session at 'Thu Jul 30 18:25:19 2009'.
Info: End of NX transport requested by signal '15'.

[END DETAILS]

I'd appreciate any help/suggestions.

TIA,
Daniel