Hello there, Thank you very much for reaching out to us. I'm sorry to hear that you are having issues with the Fireteam Finder. To rule out any issues that may be coming from your local files/connection, we'd recommend clearing your console's game cache (or verifying your game file integrity through Steam), if you haven't already. I've included [url=https://help.bungie.net/hc/en-us/articles/360049199051-Clearing-the-Console-Cache]a link[/url] to help you if needed. If you are playing on PC, please also ensure that all of your drivers, Windows, and your BIOS are all up to date. We'd also recommend going through our [url=https://help.bungie.net/hc/en-us/articles/360049496531-Network-Troubleshooting-Guide]Basic Network Troubleshooting Guide[/url] to rule out any issues that may be coming from a connectivity issue.