In paprefs when I click on “Enable network access to local sound devices” I get the following on terminal and enabling fails:
(paprefs:5139): dconf-WARNING **: 20:12:11.476: failed to commit changes to dconf: Error spawning command line “dbus-launch --autolaunch=60461ca55a30471c970a6539549556df --binary-syntax --close-stderr”: Child process exited with code 1
The warning about dconf may not be significant if the PulseAudio module for networking is loaded correctly
I suggest you check dconf to see if it is configured to load the Pulseaudio module module-native-protocol-tcp
dconf dump /org/freedesktop/pulseaudio/
and then check if the module is loaded in PulseAudio
pactl list modules short
If the PulseAudio module is loaded from paprefs , all clients and server must have the same cookie ID at ~/.config/pulse/cookie
This command will show the cookie ID value
pactl info | grep Cookie
But you might want to consider this instead of trying to match cookies for networked devices:
If the PulseAudio module is configured manually without using paprefs, configuration options can be added to allow authentication of client IP addresses or anonymous access PulseAudio - Networked audio | Archwiki
I suggest you check if the network module module-native-protocol-tcp is loaded in PulseAudio
pactl list modules short | grep tcp
if there is no response from that command to confirm the module is loaded, use this command to add the module to PulseAudio configuration as suggested in Archwiki
echo 'load-module module-native-protocol-tcp' | sudo tee --append /etc/pulse/default.pa.d