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https://issues.apache.org/jira/browse/GUACAMOLE-1232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Couchman closed GUACAMOLE-1232.
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Resolution: Invalid
> User session locked in use and cannot reset?
> --------------------------------------------
>
> Key: GUACAMOLE-1232
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1232
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole, guacamole-client, guacamole-server, RDP
> Affects Versions: 1.2.0
> Environment: Ubuntu 20.04 guacamole server, clients range from
> Windows 10 and Windows Server 2016
> Reporter: Joseph Gullo
> Priority: Major
>
> An RDP session is locked, when I try to connect I get the following message:
> The Guacamole server is denying access to this connection because you have
> exhausted the limit for simultaneous connection use by an individual user.
> Please close one or more connections and try again.
> I have logged out of that computer, I have restarted that computer. It is a
> Windows 10 computer. My user is able to connect to other computers (Windows
> 10 and Windows Server 2016) using the same guacamole session. From the other
> computers, I am able to successfully RDP into the original problematic
> computer. From a different (admin) user account I get the same message
> trying to log into the problematic computer. I logged out of guacamole
> completely and logged back in, same message. I closed the chrome session
> entirely, upon trying again, same message. I closed chrome completely,
> opened an incognito tab, same message.
> I have restarted guacd AND rebooted the guacamole server. I have edited the
> session for this computer to allow "Maximum Number of Connections" to be 5
> and "Maximum Number of connections per user" to be 5. From my admin user I
> have been able to kill the user session of the problematic user/computer (or,
> confirm it isn't there) and when I re-start the whole process I get the same
> connection error.
> The windows system logs show no errors, but I do believe I am seeing a
> successful authentication attempt.
> Somehow, this RDP session is locked and I can't unlock it; my worry is there
> is some database artifact triggering guacd to think the session is alive when
> it isn't.
> The logs in catalina.out show the following:
> {code:java}
> 16:11:18.825 [http-nio-8080-exec-9] ERROR
> o.a.g.w.GuacamoleWebSocketTunnelEndpoint - Creation of WebSocket tunnel to
> guacd failed: Cannot connect. Connection already in use by this user.
> 16:11:18.896 [http-nio-8080-exec-6] WARN o.a.g.s.GuacamoleHTTPTunnelServlet -
> HTTP tunnel request rejected: Cannot connect. Connection already in use by
> this user.{code}
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