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jmp242  
#1 Posted : Tuesday, November 6, 2018 6:46:03 PM(UTC)
jmp242


Rank: Newbie

Joined: 8/18/2015(UTC)
Posts: 5
United States

We have recently found several of our SL7.5 computers are unable to launch the control GUI to remote control another computer. It seems to be something with a failure in Icedtea-web and so far all we've found is:
Quote:
Headless check failed. You are forced to run without any graphics. IcedTea-Web can run like this, but your app probably not. This is likely bug in your system.
The application's digital signature has been verified. Do you want to run the application? It will be granted unrestricted access to your computer.
Name: ConnectWiseControl Client
Publisher: ScreenConnect Software
From:

The digital signature has been validated by a trusted source.

Type `exit` to terminate ITW, or type one of the below values. Prefix answer by "R " to remember decision and by "RC " to do so for whole codebase.
[YES, NO, SANDBOX]
netx: Initialization Error: Could not initialize application. (Fatal: Launch Error: Cancelled on user request. )
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize application. The application has not been initialized, for more information execute javaws from the command line.
at net.sourceforge.jnlp.Launcher.createApplication(Launcher.java:817)
at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:529)
at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:940)
Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Launch Error: Cancelled on user request.
at net.sourceforge.jnlp.security.JNLPAppVerifier.checkTrustWithUser(JNLPAppVerifier.java:136)
at net.sourceforge.jnlp.tools.JarCertVerifier.checkTrustWithUser(JarCertVerifier.java:602)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.checkTrustWithUser(JNLPClassLoader.java:1068)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:720)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.<init>(JNLPClassLoader.java:285)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:357)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:429)
at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:403)
at net.sourceforge.jnlp.Launcher.createApplication(Launcher.java:809)
... 2 more



Any ideas as to what's going on?
Scott  
#2 Posted : Monday, November 12, 2018 12:48:24 PM(UTC)
Scott


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There could be any number of things happening but to help track down the problem can you please tell me the following:

-What version of ConnectWise Control are you running?
-What version of Java is installed on these machines?
-What version of the IcedTea plugin is installed?
-Can these SL7.5 machines be remotely controlled via Control as a Guest?
ScreenConnect Team
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