The Ignition Designer Launcher opens normally and successfully reaches the login screen.
The username and password are entered correctly, but after submitting the credentials, the Designer closes automatically and does not load the project or show any error message.
In summary:
The Designer launches correctly
The Gateway is reachable
The login screen appears
Credentials are accepted
Immediately after login, the Designer closes and nothing opens
This indicates that the issue occurs after authentication, during the Designer startup / project loading phase, not during network connectivity or initial gateway access.
Log. *Note i overwrite the ip for xxx cause the forum detects as a link and just allow me to set 2.
INFO [CompositeClassRejectListFilter] [2026/01/06 08:41:08]: Initialization performed successfully
INFO [CompositeClassRejectListFilter] [2026/01/06 08:41:08]: JVM-wide ObjectInputFilter set up successfully
INFO [CompositeClassRejectListFilter] [2026/01/06 08:41:08]: Platform serialFilter has 88 pattern(s)
INFO [DesignerLauncher ] [2026/01/06 08:41:08]: Set initial logging level to INFO
WARN [DesignerLauncher ] [2026/01/06 08:41:09]: Gateway xxx:8088 could not be reached
INFO [CompositeClassRejectListFilter] [2026/01/06 08:41:18]: Initialization performed successfully
INFO [CompositeClassRejectListFilter] [2026/01/06 08:41:18]: JVM-wide ObjectInputFilter set up successfully
INFO [CompositeClassRejectListFilter] [2026/01/06 08:41:18]: Platform serialFilter has 88 pattern(s)
INFO [DesignerLauncher ] [2026/01/06 08:41:18]: Set initial logging level to INFO
WARN [DesignerLauncher ] [2026/01/06 08:41:20]: Gateway xxx:8088 could not be reached
INFO [GatewayConnect ] [2026/01/06 08:41:30]: Attempting to connect to gateway
xxx:8088...
INFO [LaunchUtil ] [2026/01/06 08:41:38]: Starting Java with the following parameters: C:\Users\RicardoSalgado.ignition\cache\resources\runtimes\17.0.16\bin\java.exe -classpath C:\Users\RicardoSalgado.ignition\cache\resources\platform\launchclient.jar\00000000607E8D0A\launchclient.jar -Dignition.gateway.addr.0=http://172.16.2.188:8088 -Dignition.launchts=1767710498132 -Dignition.main=com.inductiveautomation.ignition.designer.DesignerStartupHook -Dignition.edition= -Dignition.plugins= -Xms128M -Xmx1024M -Dignition.memory.init=128M -Dignition.memory.max=1024M --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.event=ALL-UNNAMED --add-opens=java.desktop/javax.swing=ALL-UNNAMED --add-opens=java.desktop/javax.swing.tree=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.basic=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.synth=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED --add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED --add-exports=java.desktop/sun.awt=ALL-UNNAMED --add-exports=java.desktop/sun.awt.image=ALL-UNNAMED --add-exports=java.desktop/sun.awt.shell=ALL-UNNAMED --add-exports=java.desktop/sun.awt.windows=ALL-UNNAMED --add-exports=java.desktop/sun.swing=ALL-UNNAMED --add-exports=java.desktop/sun.swing.plaf.synth=ALL-UNNAMED --add-exports=java.desktop/sun.swing.table=ALL-UNNAMED --add-exports=java.desktop/sun.print=ALL-UNNAMED --add-exports=java.base/sun.security.action=ALL-UNNAMED -Dsun.java2d.d3d=false -Dsun.java2d.noddraw=false -Dignition.screen=0 -Dignition.scope=D com.inductiveautomation.ignition.client.launch.BootstrapSwing
Ok so you are hitting an issue after login. this is in an entirely new process than the actual Designer Launcher. at the end of your logging there is the command used to launch this new process, are you able to run that in cmd or powershell to get standard output for the running designer process and paste it here?
Error: Could not find or load main class .gateway.addr.0=http:..172.16.2.188:8088
Caused by: java.lang.ClassNotFoundException: /gateway/addr/0=http://172/16/2/188:8088
Error: Could not find or load main class .gateway.addr.0=http:..172.16.2.188:8088
Caused by: java.lang.ClassNotFoundException: /gateway/addr/0=http://172/16/2/188:8088
I Copied several times, i have the notepad and sublime text, and still getting the same msg. Now a other partner is having the same issuee with the same Gateway.
