Look at you guys scrambling to keep the it alive..
Let it die.
lol. Whether you like it or not simply by typing this you already made it a bit more alive bringing the thread to the top
Everyone with a running wallet and a direct connection to the internet is a node. Or does it somehow work behind a NAT router? Most computers are on a private address.
if you are behind NAT then quite likely you need to forward some ports to the machine you run your client on in order for it to be accessible from outside.
Besides even if you do that some changes to config are required
In your sexcoin.conf [or any other altcoin use "NAME OF THE ALTcoin.con"] you need to set some of the below. It is not really clear for me which of those options are required for running as a full node to which others might connect
daemon=1
server=1
listen=1
here you obviously set max number of connections
maxconnections=25