I am glad you made it through the install procedure and repaired the wifi network afterwards.
I will share a
manual setup template procedure for a USB WiFi dongle device Edimax EW-7811un and a PCI RTL8188ce card.
https://forums.ghostbsd.org/viewtopic.php?f=64&t=526 USB RTL8192cu Edimax ES-7811un Realtek device
https://forums.ghostbsd.org/viewtopic.php?f=64&t=570 PCI RTL8188ce Realtek PCI device
I researched and wrote those forum posts to take some one who is a new user (like myself at that time) to FreeBSD / GhostBSD and find out what WiFi devices exist on their laptop or desktop and then manually go step by step with simple commands, until you have a working WiFi network connection using the same tools and programs that the
NetworkMgr python application uses to make a network connection. I wrote these steps down based on reading many sources, Web URLS, and then testing step by step myself. I collected this information and wrote it down from beginning to end. The
FreeBSD handbook is very useful, but starts in the middle and supposes you know what commands to use and in which order to configure your network,
yet when you are a new user, you have no ideas on what command to use, nor previous experience in this "
new to you" operating system.
Use the commands listed as a template and modify for your computer hardware situation. Basically
edit 3 files:
/boot/loader.conf
/etc/rc.conf
/etc/wpa_supplicant.conf
and run about 4 commands:
ifconfig wlan0 create wlandev rtwn0
killall dhclient
wpa_supplicant -b -i wlan0 -c /etc/wpa_supplicant.conf
dhclient wlan0