rtw88 vs rtwn Wi-Fi drivers

From: Steven Friedrich <freebsdlouisville_at_gmail.com>
Date: Sat, 15 Jun 2024 09:56:55 UTC
slimline is an HP Slimline Desktop - 290-p0014

Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz
Coffee Lake (Core i7)
Ethernet    RTL8111/8168/8411 and RTL8125 2.5GbE
Wi-Fi RTL8821CE

I have disabled Ethernet interfaces so I could concentrate on my Wi-Fi issue

The on board Wi-Fi is this, but it won't associate.

rtw880@pci0:2:0:0:    class=0x028000 rev=0x00 hdr=0x00 vendor=0x10ec 
device=0xc821 subvendor=0x103c subdevice=0x831a
     vendor     = 'Realtek Semiconductor Co., Ltd.'
     device     = 'RTL8821CE 802.11ac PCIe Wireless Network Adapter'
     class      = network


Inserting the USB dongle and making appropriate changes to rc.conf, this 
WiFi associates:

ugen0.2: <A6100 AC600 DB Wireless Adapter [Realtek RTL8811AU] NetGear, 
Inc.> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

There must be some slight deviation in this rtl8821ce implementation.  I 
am unaware of any bugs on the bug list that indicate this issue.

How can I help the developer find/fix this issue?

This 'RTL8821CE 802.11ac PCIe Wireless Network Adapter' works under 
Linux Mint and KDE Neon.