Your server is not responding.
somercamb.subsonic.org returns
http://209.6.49.60:4040/subsonic/but the webpage is unavailable.
All this tells me is that subsonic.org is redirecting the request to the ip shown, but there is no server answering the request.
This can be due to any of the following:
1) The server is not running.
2) subsonic .org has the wrong ip address on record - if so, go to Settings/Network and Save to update the current external ip address information and retransmit same to subsonic.org so that redirection now goes to the correct ip address.
3) The most common cause for not connecting is that the port forwarding is not set up correctly or a firewall is blocking the connection. You can test easily by going to Canyouseeme.org and entering the port you have designated for Subsonic to use, in your case it is probabloy 4040 unless you have changes it.
You will NEVER-EVER connect from outside of your network unless/until you get a response from canyouseeme.org that the port is open.
viewtopic.php?f=6&t=4867