When experiencing issues with Trezor Bridge, this comprehensive troubleshooting guide will help you resolve the most common problems. Most issues can be resolved through simple steps, and we're here to ensure your experience with Trezor Bridge is seamless and secure.
Common Issues and Solutions
Bridge Not Detecting Device
If your Trezor device is not being detected, first verify that the USB cable is securely connected to both your device and computer. Try using a different USB port, preferably one directly on your computer rather than through a USB hub. Some USB hubs do not provide adequate power or data connectivity for hardware wallets.
Ensure that Trezor Bridge is running by checking your system tray (Windows) or menu bar (macOS). If Bridge is not running, launch it manually from your applications folder. On Linux systems, you may need to check that udev rules are properly configured to allow non-root access to USB devices.
Browser Cannot Connect to Bridge
Browser connectivity issues often stem from firewall or security software blocking local communication. Check your firewall settings to ensure that localhost connections on port 21325 are permitted. Add an exception for Trezor Bridge if necessary. Some antivirus software may also interfere with local communications and require similar exceptions.
Clear your browser cache and cookies, then restart your browser completely. Browser extensions, particularly privacy or security extensions, may block localhost communication. Try disabling extensions temporarily to identify if one is causing the issue. If using a corporate network, VPN, or proxy, these may also interfere with Bridge communication.
Installation Problems
Installation failures typically occur due to insufficient permissions or conflicts with previous installations. On Windows, ensure you run the installer as Administrator by right-clicking the installer file and selecting "Run as Administrator." On macOS, you may need to allow the installation in System Preferences under Security & Privacy if you see a message about an unidentified developer.
Transaction Signing Failures
Transaction signing errors may occur if your device firmware is outdated. Check for firmware updates through the Trezor Suite application and install any available updates. Outdated firmware may not support newer transaction types or cryptocurrencies.
Platform-Specific Issues
Windows Troubleshooting
Windows users should verify that the Microsoft Visual C++ Redistributable is installed, as Bridge requires these runtime libraries. Windows Defender or other security software may quarantine Bridge components.
macOS Troubleshooting
On macOS, especially newer versions, you may need to grant Bridge additional permissions. Check System Preferences and navigate to Security & Privacy, then to the Privacy tab. Ensure Bridge has the necessary permissions for Input Monitoring if prompted.
Linux Troubleshooting
Linux users must ensure udev rules are properly configured. Download the latest udev rules from the Trezor GitHub repository and copy them to /etc/udev/rules.d/. After adding rules, reload them and reconnect your device.
Getting Additional Help
If you've tried these solutions and still experience issues, visit the Trezor support portal for comprehensive help articles and video guides. The Trezor community forum is an excellent resource where experienced users and Trezor staff provide assistance.
When seeking support, provide detailed information including your operating system version, Bridge version, browser version, and a clear description of the issue. Never share your recovery seed phrase or PIN with anyone—legitimate Trezor support will never ask for this information.