In case this helps
$ sudo NetworkManager --print-config
# NetworkManager configuration: /etc/NetworkManager/NetworkManager.conf 
(lib: 10-dns-resolved.conf, 10-globally-managed-devices.conf, 
no-mac-addr-change.conf) (etc: default-wifi-powersave-on.conf)

[main]
# rc-manager=symlink
# auth-polkit=true
# dhcp=internal
dns=systemd-resolved
plugins=ifupdown,keyfile

[ifupdown]
managed=true

[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma

[logging]
# backend=journal
# audit=true

[device]
wifi.scan-rand-mac-address=no

[device-mac-addr-change-wifi]
match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
wifi.scan-rand-mac-address=no

[connection]
wifi.powersave=3

# no-auto-default file "/var/lib/NetworkManager/no-auto-default.state"

On 9/14/20 11:00 AM, Retro64XYZ via PLUG-discuss wrote:
> https://wiki.debian.org/NetworkManager
>
>
> Is there anything inside /etc/network/interfaces?
>
>
> Thanks,
>
> Aaron
>
> On 9/14/20 9:43 AM, Jim via PLUG-discuss wrote:
>> Thanks Aaron for your  suggestion.  I followed your instructions.  
>> Now Discover recognizes that it's online.   The network manager gui 
>> still isn't there.  I tried nmcli.
>>
>> $ nmcli -a
>> enp5s0: unmanaged
>>         "Realtek RTL8111/8168/8411"
>>         ethernet (r8169), 00:1A:4D:93:EF:2F, hw, mtu 1500
>>
>> lo: unmanaged
>>         "lo"
>>         loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
>>
>> How do I tell network manager to manage the connection?  I checked 
>> /etc/NetworkManager/NetworkManager.conf.  I changed false to true, 
>> rebooted but no effect.
>>
>> [main]
>> plugins=ifupdown,keyfile
>>
>> [ifupdown]
>> #managed=false
>> managed=true
>>
>> [device]
>> wifi.scan-rand-mac-address=no
>>
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