Hi @RawanA  What version did you upgrade from? Can you first try upgrading to 10.2.2 as this may contain fixes for this. You might also find the following useful which relates to this/similar issue: https://splunk.my.site.com/customer/s/article/Agent-Management-page-not-loading-after-Splunk-Enterprise-10-2-upgrade https://community.splunk.com/t5/Splunk-Enterprise/After-upgrade-10-0-to-10-2-0-Forwarder-Management-Web-UI-is/m-p/757816 🌟 Did this answer help you? If so, please consider: Adding karma to show it was useful Marking it as the solution if it resolved your issue Commenting if you need any clarification Your feedback encourages the volunteers in this community to continue contributing ... View more