Hi,
Not sure what is the cause but when I try to open the server through antipodes.audio/setup on windows PC it refuses to do so and I noticed in the IP address of the server there is now /V4 at the end of the IP address that has never been there before.
Server is running V5 software.
Same outcome when using my mobile phone just says no music servers found on network.
I had this problem a couple of days ago. There is a new link on site for connecting the servers. Click on that. I suspect it is happening due to software updates.