Can't run Macserial — "No network connection" (known problem)

Mods: Please don't delete this! I posted it in two places (changing the title) and both got removed (redundant to each other). Thank you and apologies for the trouble.

Compiling and running "Macserial" (meaning, the genSYMBIOS script that comes with OpenCore) gives an error: "Error checking for updates (network issue)"

Googling shows that many people have this problem. Solutions — running in Windows or running in Docker — aren't readily available to me (I don't have a recent...

Read more