defguard
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defguard
  • Welcome
  • Getting help
    • About Defguard
    • Features overview
    • One-line install script
    • Overview
    • Zero-Trust VPN with 2FA/MFA
    • Remote user enrollment
    • Internal SSO (OpenID Connect Provider)
    • External SSO/OpenID providers
    • LDAP and Active Directory integration
    • Firewall
    • Network devices
    • Activity & Audit logs
    • Notifications
    • Integrations
    • OPNSense Configuration
    • SSH Authentication
    • Forward auth
    • User SNAT bindings
    • Service locations
    • Desktop client auto-provisioning
    • Static IP assignment
    • Certificate management
    • Overview
    • Deploying to Production
    • Migration guides
    • Hardware, OS, network and firewall recommendations
    • Standalone package based installation
    • Docker Compose
    • Kubernetes
    • Terraform
    • OVA
    • Amazon Machine Image (AMI)
    • Configuration
    • Running Gateway on OPNsense firewall
    • Running Gateway on VyOS
    • Reverse Proxy configuration using NGINX
    • High Availability and Failover
    • Updating and version compatibility
    • Using a userspace WireGuard implementation
    • Pre-production and development releases
    • Health check
    • Production deployment verification guide
    • Linux Kernel WireGuard tuning
    • Programmatic gateway adoption
    • Purchasing and using the license
    • Overview
    • Mobile Client
    • Desktop Client
    • CLI Client
    • Other WireGuard® Clients
    • Password change / Reset
    • Enrollment & Onboarding
    • Setting up 2FA/MFA
    • How to submit an issue
    • Sending support information
    • Troubleshooting Guides
      • Core
        • h2 protocol error from reverse proxy
        • Unable to sign in with correct credentials
        • User lost access to their 2FA methods
        • Enrollment URL Changed
        • Failed to parse duration
        • Core cannot connect to Gateway or Edge after restart on single-host deployments
      • Desktop Client
      • Mobile Client
      • Edge Component
      • Gateway
      • TOTP / email codes for MFA do not work
      • WebAuthn security keys
      • Can access VPN but not local network or internet
      • How to verify the VPN is working
      • Testing VPN speed
    • Server migration and licence transfer
    • Initial Setup Wizard: setting up from scratch
    • Migrating from Defguard 1.6 to 2.0
    • Adding Edge component
    • Defguard Compliance
    • Secure by design
    • Architecture
    • Architecture Decision Records
    • Client application feature compatibility
    • Defguard Open Organisation
    • BoringTun
    • Contributing
    • Environment setup
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  1. Support
  2. Troubleshooting Guides

Core

h2 protocol error from reverse proxyUnable to sign in with correct credentialsUser lost access to their 2FA methodsEnrollment URL ChangedFailed to parse durationCore cannot connect to Gateway or Edge after restart on single-host deployments
PreviousTroubleshooting GuidesNexth2 protocol error from reverse proxy

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