InetLoad plug-in "Your internet connection seems to have dropped out! Please reconnect and clock Retry to resume downloading..."
I soldiered through this error and the installation (apparently) completed successfully.
This is related to the settings of ftp.lyx.org which displeases the InetLoad plugin of the installer. You can simply ignore the message. In case that ftp.lyx.org is indeed unusable, the installer will automatically download from a backup server. Bo