"Barrier is starting." But not working.

[gregrwm]

What happened?

Barrier is stuck at "Barrier is starting." What might i need?

Both boxen have a wire to my modem, are fully updated, and can ssh to each other. Both have this /etc/barrier.conf:

section: screens
        e540:
        eb840g3:
end
section: links
        e540:
                up    = eb840g3
        eb840g3:
                down  = e540
end

i invoked barrier(2.4.0-1)(installed by pacman) on e540(manjaro kde), in the terminal it said:

*** WARNING *** The program 'barrier' called 'DNSServiceRegister()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see http://0pointer.de/blog/projects/avahi-compat.html

i found input-leap/input-leap#780 via google but it's not clear to me if the comments solved the issue. Perhaps if i give the server address to the client Barrier doesn't really need avahi?

Not knowing what to make of that i went ahead in the barrier GUI, designated it as 'Server', selected 'Use existing configuration:' at /etc/barrier.conf and clicked 'Start'. in the terminal it said:

("-f", "--no-tray", "--debug", "INFO", "--name", "e540", "--disable-client-cert-checking", "-c", "/etc/barrier.conf", "--address", ":24800")

and in the GUI it says "Barrier is running." Then i invoked barrier(2.4.0-1.7)(installed by zypper) on 3b840g3(tumbleweed kde), designated it as 'Client', 'Auto config', clicked 'Start', in the terminal it said:

("-f", "--no-tray", "--debug", "INFO", "--name", "eb840g3", "[]:24800")

and in the GUI it says "Barrier is starting." Tried uncheck 'Auto config', entered Server IP, clicked 'Reload', 'Stop', and 'Start', in the terminal it said:

("-f", "--no-tray", "--debug", "INFO", "--name", "eb840g3", "[10.3.8.21]:24800")

and in the GUI it still says "Barrier is starting."

Both GUIs say "SSL Fingerprint: Disabled". The manjaro default install has no firewall iiuc. Tumbleweed does, but as client does it need anything open? i tried "firewall-cmd --add-port=24800/tcp" on tumbleweed, and clicked 'Stop' and 'Start' on the Server and then the Client, but no change.

What else might i check, or read, or do?
Many thanks,

Version

v2.4.0

Git commit hash (if applicable)

No response

If applicable, where did you install Barrier from?

pacman and zypper, from the default repositories

What OSes are you seeing the problem on? (Check all that apply)

Linux

What OS versions are you using?

server on manjaro kde, client on tumbleweed kde, both are rolling release and up to date

Relevant log output

manjaro/server:
Sep 20 23:51:31 e540 barrier[15783]: *** WARNING *** The program 'barrier' called 'DNSServiceRegister()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi.
Sep 20 23:51:31 e540 barrier[15783]: *** WARNING *** Please fix your application to use the native API of Avahi!
Sep 20 23:51:31 e540 barrier[15783]: *** WARNING *** For more information see <http://0pointer.de/blog/projects/avahi-compat.html>
Sep 20 23:51:31 e540 dbus-daemon[399]: [system] Activating via systemd: service name='org.freedesktop.Avahi' unit='dbus-org.freedesktop.Avahi.service' requested by ':1.322' (uid=1000 pid=15783 comm="barrier")
Sep 20 23:51:31 e540 dbus-daemon[399]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.Avahi.service': Unit dbus-org.freedesktop.Avahi.service not found.
Sep 20 23:51:31 e540 kded5[720]: Registering ":1.71/StatusNotifierItem" to system tray

tumbleweed/client:
Sep 20 23:53:04 eb840g3 kded5[1999]: Registering ":1.75/StatusNotifierItem" to system tray

Any other information

No response

[gregrwm]

on one device barrier is running but on other device its stuck at "barrier is starting", tried all the steps above..
In the server mode it is running but on client mode it's stuck at starting on both devices..
Server mode works, client mode doesn't
Same for me. Says SSL disabled, no firewall on manjaro, disabled tumbleweed firewall, swapped which is server and which is client, whichever is client just says "Barrier is starting."

[gregrwm]

just found synergy also in manjaro&tumbleweed repos, and it works

[octoshrimpy]

check #1812 as it may have been firewall shenanigans

[HCley]

just found synergy also in manjaro&tumbleweed repos, and it works

Sorry, but
What have you done? I'm still stuck on that.