> For the complete documentation index, see [llms.txt](https://docs.portainer.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication.md).

# Access and authentication

- [How can I switch back to internal authentication?](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/how-can-i-switch-back-to-internal-authentication.md)
- [I enabled "Force HTTPS only" and now I'm locked out of Portainer. How do I get back in?](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/i-enabled-force-https-only-and-now-im-locked-out-of-portainer.-how-do-i-get-back-in.md)
- [How do I reset my Portainer password?](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/how-do-i-reset-my-portainer-password.md)
- [Client sent an HTTP request to an HTTPS server](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/client-sent-an-http-request-to-an-https-server.md)
- [Unable to Authenticate After Portainer Update](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/unable-to-authenticate-after-portainer-update.md)
- [Unable to Login via LDAP in Portainer](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/unable-to-login-via-ldap-in-portainer.md)
- [LDAP Groups are not auto-populating Portainer teams](https://docs.portainer.io/faqs/troubleshooting/access-and-authentication/ldap-groups-are-not-auto-populating-portainer-teams.md)