I was not successful with the -R option. However, I was successful with making the following change in raspi-config:
$ sudo raspi-config -System Options -Network at Boot "Would you like boot to wait until a network connection is established?” Yes I’m sure it’s probably not the best solution, but it works for me! FYI - Raspberry Pi 4 Model B Rev 1.1, Raspbian GNU/Linux 10 (buster). Would love feedback if enabling “Network at Boot” is a bad idea.
