WiFi Authentication does not work (ThinkPad Intel Wireless 7260, RTL8111/8168/8411 PCI)

Hi, I just booted NomaBSD for the first time, and it looks awesome. It also comes with the most needed programs pre-installed. I want to use it to replace my Linux USBs for working on host machines during holidays and traveling.
Unfortunately, I cannot connect with my WiFi network. It works with FreeBSD on the same machine. Strangely, I can see the WiFi networks, but after choosing it, I’m asked for the password, but the connection fails to authenticate.
This laptop is an elderly ThinkPad (~2015) with Intel Wireless 7260 and RTL8111/8168/8411 PCI.
Any ideas?
Best, Robert