Can you give me some more info about this? I have seen a similar thing myself, but I also noticed this only happened when I was debugging a lot and I was starting and stopping the server a lot, while keeping my Chrome browser open, which sometimes confused the jServer library (jetty). ABMaterial has a build in 'timer' in the browser part where, if it loses connection starts a timer every 3 seconds to reconnect. You can see this in the b4j_ws.js file in the www/js/ folder.there is a problem: after some time, the application is disconnected and is no longer reachable. There is a timer that stops or after a little time?