New information. When the client fails, if I can catch it before it totally closes out and goes back to the login and then click on session details. I get this:

NXPROXY - Version 3.5.99.15

Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)
Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>
Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>
Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>
Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)

NXCOMP, NX protocol compression and NX extensions to this software
are copyright of the aforementioned persons and companies.

Redistribution and use of the present software is allowed according
to terms specified in the file LICENSE.nxcomp which comes in the
source distribution.

All rights reserved.

NOTE: This software has received contributions from various other
contributors, only the core maintainers and supporters are listed as
copyright holders. Please contact us, if you feel you should be listed
as copyright holder, as well.

NX protocol compression is derived from DXPC project.

Copyright (c) 1995,1996 Brian Pane
Copyright (c) 1996,1997 Zachary Vonler and Brian Pane
Copyright (c) 1999 Kevin Vigor and Brian Pane
Copyright (c) 2000,2003 Gian Filippo Pinzari and Brian Pane

All rights reserved.

See https://github.com/ArcticaProject/nx-libs for more information.

Info: Proxy running in server mode with pid '12285'.
Session: Starting session at 'Fri Mar  9 08:41:51 2018'.
Info: Using errors file '/home/sspencer/.x2go/S-kscadmin-51-1520534328_stDMATE_dp24/sessions'.
Info: Using stats file '/home/sspencer/.x2go/S-51/stats'.
Loop: WARNING! Overriding auxiliary X11 port with new value '1'.
Warning: Overriding auxiliary X11 port with new value '1'.
Info: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:0.
Info: Connecting to remote host 'localhost:46965'.
Info: Connected to remote proxy on FD#5.
Loop: PANIC! The remote NX proxy closed the connection.
Error: The remote NX proxy closed the connection.
Loop: PANIC! Failure negotiating the session in stage '7'.
Error: Failure negotiating the session in stage '7'.
Loop: PANIC! Wrong version or invalid session authentication cookie.
Error: Wrong version or invalid session authentication cookie.
Session: Terminating session at 'Fri Mar  9 08:41:52 2018'.
Session: Session terminated at 'Fri Mar  9 08:41:52 2018'.


On 03/09/2018 08:18 AM, Steven Spencer wrote:

Greetings,

I sent this yesterday, but was not a member of the list, so wasn't sure if it would end up being approved and posted or not. Here's the content of that message and I apologize if this is a duplicate:

We use x2go extensively for some access to some Ubuntu based LTSP servers. Suddenly over the last two days, we get the following in the client:

"The remote proxy closed the connection while negotiating
the session. This may be due to the wrong authentication
credentials passed to the server."

And on the server we are trying to connect to, we see this in the logs:

/usr/bin/x2goresume-session: client [ip.address.of.client] has successfully resumed session with ID kscadmin-51-1520534328_stDMATE_dp24

/usr/bin/x2gosetkeyboard: /home/ksca0dmin/.x2go/C-kscadmin-51-1520534328_stDMATE_dp24/keyboard did not appear within 30s after agent startup

We are never able to connect. This happens even on all servers that we connect to and includes older server versions:

    x2goagent: 3.5.0.33
    x2goserver: 4.0.1.22
    x2goserver-extensions: 4.0.1.22
    x2goserver-xsession: 4.0.1.22

As well as newer ones:

    x2goserver: 4.1.0.0
    x2goserver-common: 4.1.0.0
    x2goserver-extensions: 4.1.0.0
    x2goserver-fmbindings: 4.1.0.0
    x2goserver-printing: 4.1.0.0
    x2goserver-x2goagent: 3.5.99.14
    x2goserver-xsession: 4.1.0.0

Unfortunately, the clients are now updated as well trying to fix this issue, but they were failing on the older client version as well:

    X2Go Client v. 4.1.1.1 (Qt - 4.8.7)


Any help would be appreciated.


Thanks, 
-- 
-- 
Steven G. Spencer, Network Administrator
KSC Corporate - The Kelly Supply Family of Companies
Office 308-382-8764 Ext. 1131
Mobile 402-765-8010 



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-- 
-- 
Steven G. Spencer, Network Administrator
KSC Corporate - The Kelly Supply Family of Companies
Office 308-382-8764 Ext. 1131
Mobile 402-765-8010