Troubleshooting

Connection Issues

General

If all else fails, try rebooting everything.

macOS

Problem: Fails to connect with EHOSTUNREACH

Full error message: Failed to connect to ev3dev: connect EHOSTUNREACH fdc5:f7b4:b130::210:60ff:fedd:3845:22 - Local (:::49165)

Solution: Reconfigure IPv6 on your network interface.

1. Go to System Preferences > Networking.
2. Select the network connection you are trying to use, e.g. Wi-Fi.
3. Select Advanced....
4. Switch to the TCP/IP tab.
5. Change Configure IPv6 to Local-link only.
6. Click OK.
7. Click the Apply button.
8. Click Advanced... again.
9. Switch to the TCP/IP tab again.
10. Change Configure IPv6 back to Automatically.
11. Click OK again.
12. Click the Apply button again.

Linux

Problem: The list of devices does not appear when trying to connect to a device

Solution: Make sure avahi-daemon is installed and running.

Problem: USB Connection disconnects after a few minutes

Solution: NetworkManager will disable the IPv6 interface when no IPv4 connection is made. Either disable IPv4 in Network Manager or setup an IPv4 connection in Brickman.

Windows

Problem: Device will not connect via bluetooth

Solution: needed