Portainer Documentation
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Portainer Documentation
  • Welcome
  • What's new in version 2.39
  • Release Notes
    • Introduction
    • Portainer architecture
    • Lifecycle policy
    • Requirements and prerequisites
    • Install Portainer BE
    • Install Portainer CE
    • Add an environment to an existing installation
    • Updating Portainer
    • Home
    • Docker/Swarm/Podman
    • Kubernetes
    • Azure ACI
    • Nomad
    • Edge Compute
    • Observability
    • Account settings
    • User-related
    • Environment-related
    • Registries
    • Licenses
    • Logs
    • Notifications
    • Settings
    • Getting started
    • Installing
    • Upgrading and downgrading
    • Licensing
    • Troubleshooting
      • Access and authentication
        • How can I switch back to internal authentication?
        • I enabled "Force HTTPS only" and now I'm locked out of Portainer. How do I get back in?
        • How do I reset my Portainer password?
        • Client sent an HTTP request to an HTTPS server
        • Unable to Authenticate After Portainer Update
        • Unable to Login via LDAP in Portainer
        • LDAP Groups are not auto-populating Portainer teams
      • Agents and environment management
      • Stacks, deployments and updates
      • UI and features
      • Logs, errors and debugging
      • Certificates and security
      • Registry and image management
    • Contributing
    • Known issues
    • Getting support
    • Manage Portainer using Terraform
    • CLI configuration options
    • App templates
    • The Portainer Edge Agent
    • Access control
    • Reset the admin user's password
    • Security and compliance
    • Encrypting the Portainer database
    • Using your own SSL certificate with Portainer
    • Using mTLS with Portainer
    • Stream auth and activity logs to an external provider
    • Using Portainer with reverse proxies
    • How Relative Path Support works in Portainer
    • Helm chart configuration options
    • Docker roles and permissions
    • Kubernetes roles and bindings
    • Deprecated and removed features
    • How to prestage an Edge Agent environment
    • Accessing the Portainer API
    • API documentation
    • API usage examples
    • Portainer Academy
    • YouTube
    • GitHub
    • Slack
    • Discord
    • Open a support request
    • Contribute
    • Build instructions
  • Privacy Policy
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For the complete documentation index, see llms.txt. This page is also available as Markdown.
  1. 2.39 LTS
  2. Frequently Asked Questions
  3. Troubleshooting

Access and authentication

How can I switch back to internal authentication?I enabled "Force HTTPS only" and now I'm locked out of Portainer. How do I get back in?How do I reset my Portainer password?Client sent an HTTP request to an HTTPS serverUnable to Authenticate After Portainer UpdateUnable to Login via LDAP in PortainerLDAP Groups are not auto-populating Portainer teams
PreviousTroubleshootingNextHow can I switch back to internal authentication?

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