nmcli not showing connections

I am new to Linux and was trying to configure my system.  I wanted to use https://github.com/ericmurphyxyz/rofi-wifi-menu , but saw it was not showing any connections.\ When I enter nmcli I get this:

lo: connected (externally) to lo
        "lo"
        loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
        inet4 127.0.0.1/8
        inet6 ::1/128

enp2s0: unavailable
        "Realtek RTL8111/8168/8411"
        ethernet (r8169), B4:45:06:D9:65:B5, hw, mtu 1500

wlp3s0: unavailable
        "Realtek RTL8821CE"
        wifi (rtw_8821ce), 9A:98:C1:92:6D:79, hw, mtu 1500

And entering nmcli device wifi list I get:

IN-USE  BSSID  SSID  MODE  CHAN  RATE  SIGNAL  BARS  SECURITY

Entering nmcli con:

NAME                UUID                                  TYPE      DEVICE 
lo                  66a00c43-8262-495a-a808-19daa15176e2  loopback  lo     
Wired connection 1  ca90b794-139c-36fd-a248-3ca5b1b4602b  ethernet  --

Entering nmcli con show wlp3s0:

Error: wlp3s0 - no such connection profile.

A thing to note is my laptop is connected to the Wi-Fi and can access the internet, and I connected to the Wi-Fi during the installation of Debian.  And when I restart NetworkManager, it doesn't reconnect to the Wi-Fi unless I reboot. I'll gladly provide any more info for help. **Edit**: I have not made any changes to the network settings since installation. Also now on some boots I don't have Wi-Fi, only after a few reboots do I connect. Adding a connection with nmcli con add, I now get the output from nmcli con show:

NAME                UUID                                  TYPE      DEVICE 
lo                  051be556-c06e-4a8f-ad7c-9fb29f276ba9  loopback  lo     
wifi                16ab3681-5062-4d1c-be34-be6f41cefd29  wifi      --     
Wired connection 1  ca90b794-139c-36fd-a248-3ca5b1b4602b  ethernet  --