Arduino IDE 2.3.6 stuck on start up

[sterretje]

@josiahag

2025-09-01T19:01:23.586Z root ERROR Failed to update platform, library indexes. Error: 13 INTERNAL: Error downloading index 'https://downloads.arduino.cc/libraries/library_index.tar.bz2': Get "https://downloads.arduino.cc/libraries/library_index.tar.bz2": dial tcp [2606:4700::6812:b15]:443: connectex: An attempt was made to access a socket in a way forbidden by its access permissions.

Anything special about your network setup? Firewall settings, vpn, company computer/network?