Mac book doesn't boot. Screen shows "apple.com/support -4403F"
In the process of reinstalling Mac OS I come to the point where Mac book does not restart and screen shows a globe and "apple.com/support -4403F". Before it was "-2100F".
What to do?
Typically the globe like that is for Netboot or Internet Recovery. But if an error is happening, perhaps there is trouble with the network connection.