> For the complete documentation index, see [llms.txt](https://docs.defguard.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.defguard.net/1.6/support-1.md).

# Support

- [How to submit an issue](https://docs.defguard.net/1.6/support-1/how-to-submit-an-issue.md)
- [Troubleshooting Guide](https://docs.defguard.net/1.6/support-1/troubleshooting.md): Here are some common issues / problems that are frequently encountered.
- [Sending support information](https://docs.defguard.net/1.6/support-1/troubleshooting/sending-support-info.md)
- [Client Windows installer exit codes](https://docs.defguard.net/1.6/support-1/troubleshooting/windows-installer-exit-codes.md): Desktop Client windows installer exist codes list.
- [Client "All traffic" connection issues](https://docs.defguard.net/1.6/support-1/troubleshooting/client-all-traffic-connection-issues.md)
- [WebAuthn security keys](https://docs.defguard.net/1.6/support-1/troubleshooting/webauthn-security-keys.md)
- [Desktop Client connectivity issues](https://docs.defguard.net/1.6/support-1/troubleshooting/desktop-client-connectivity-issues.md)
- [Client opening issues on Linux](https://docs.defguard.net/1.6/support-1/troubleshooting/client-opening-issues-on-linux.md)
- [Client crashes immediately on launch with "Error 71 (Protocol error) dispatching to Wayland display"](https://docs.defguard.net/1.6/support-1/troubleshooting/client-crashes-immediately-on-launch-with-error-71-protocol-error-dispatching-to-wayland-display.md)
- [Server migration and licence transfer](https://docs.defguard.net/1.6/support-1/server-migration-and-licence-transfer.md)
- [Defguard 1.6 Support Policy](https://docs.defguard.net/1.6/support-1/defguard-1.6-support-policy.md)