1. Reset the Network Hardware
Shut down the computer and reset the network hardware by unplugging the router and/or modem.
After a minute, plug the router and/or modem back in to restart it and turn the computer back on and try using Garmin Express software again.
2. Check the Date and Time Settings on the Computer
Incorrect date and time settings on the computer can cause communication errors between Garmin Express software and the Garmin® servers. Verify the date, time, and time zone settings are correct on the computer.
3. Temporarily Disable Internet Security/Firewall
Although most security software will not interfere with Garmin Express software, some security software (such as software that is used on work computers or in a business environment) may cause this error.
If possible, try temporarily disabling the software.
If you cannot disable it, it will be necessary to use a different computer.
If disabling fails to resolve the issue, you can set up an exception for Garmin Express.
See Garmin Fleet Updater and Garmin Express Network Requirements for more information.
4. Check the Proxy Settings on the Computer
Incorrectly configured proxy and/or LAN settings may affect the connection between the Internet and Garmin Express. Verify the Proxy Settings are Correct on a Computer.
5. Disable Virtual Private Network (VPN)
If applicable, disable any VPN that is in use. If this is not possible, use a different computer and/or network connection.