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
    • SSH Authentication
    • Forward auth
    • User SNAT bindings
    • Service locations
    • Desktop client auto-provisioning
    • Static IP assignment
    • Certificate management
    • Device posture verification
    • Managing Defguard via CLI
    • User 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
    • Gateway/Location VLAN routing
    • Purchasing and using the license
    • Overview
    • Mobile Client
    • Desktop Client
    • Other WireGuard® Clients
    • Password change / Reset
    • Enrollment & Onboarding
    • Setting up 2FA/MFA
    • Resolving Posture Check Failures
    • How to submit an issue
    • Sending support information
    • Using the Support Portal
    • Troubleshooting Guides
      • Core
      • Desktop Client
      • Mobile Client
        • Android "Failed host lookup" error
      • 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
    • REST API
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For the complete documentation index, see llms.txt. This page is also available as Markdown.
  1. 2.1
  2. Support
  3. Troubleshooting Guides

Mobile Client

Android "Failed host lookup" error
PreviousClient crashes immediately on launch with "Error 71 (Protocol error) dispatching to Wayland display"
NextAndroid "Failed host lookup" error

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