Page permalink Always use the following permalink when referencing this page. It will remain unchanged in future help versions. https://docs.sophos.com/nsg/sophos-firewall/18.5/Help/en-us/webhelp/onlinehelp/index.html?contextId=Diagnostics Your browser doesn’t support copying the link to the clipboard. Please copy it manually. DiagnosticsYou can check the health of your Sophos Firewall. You can use this information to troubleshoot and diagnose issues. Was this page helpful? Thank you for your feedback Thank you for your feedback. Help us improve this page by giving us more information.