I'm trying to install boards using the board manager however, I keep running into this error:
Downloading packages
arduino:arduinoOTA@1.3.0
Failed to install platform: 'arduino:avr:1.8.6'.
Error: 2 UNKNOWN: Get "https://downloads.arduino.cc/tools/arduinoOTA-1.3.0-linux_amd64.tar.bz2": dial tcp [2606:4700::6812:b15]:443: connect: network is unreachable
I can access this URL from Firefox, wget, and curl just fine. This happens in both the appimage, Zip file, and the flatpak.