After applying the 18.104.22.168 update on a UCM6208, every equipment configured via Zero Config lost connection. What I found was that the UCM was giving the WAN IP instead of the LAN to all devices. I managed to set the SIP Server address correctly, but the “config server path” keep getting the wan ip, even if I force the configuration in the Global Policy.
If I set the config server path manually in the devices, after a reboot they go back to the wan ip.
Any advice before I try to revert back the firmware?