I am using <a4j:suppot> to enable ajax feature in JSF 1.2. I am having no problem with reRendering before submission of the form. However, after submission, when any validation fails (Render Response Phase), I receive the same form back with validation error messages. Now, from this point, my ajax don't work. When I see my console, I can see its going to the changelistener, updates the value, but it doesn't get displayed in the screen. I am not understanding why the component once gone through Update Model Phase, can't be updated again. Am I missing something?