edeliver can't receive ping from deployed node

Question

I have an application that works and can be deployed just fine. I'm trying to connect from one Node to another on a different machines, and for that I needed to change the -name property from [email protected] to [email protected] (the real IP).

I can connect via Node.connect() and it works fine, but mix edeliver version staging can't connect anymore to the Node. The error is response: Node [email protected] is not running!. If I revert back to [email protected] it starts working, but that way I can't connect to the node.

I've tried to debug, but I can't go deeper into.

# Ensures the current node is running, otherwise fails
require_live_node() {
    if ! nodetool "ping" >/dev/null; then
        fail "Node $NAME is not running!"
    else
        return 0
    fi
}

Am I missing something ? I've already have the ports necessary for Node connection open, but when it is 127.0.0.1 works fine, I don't think the issue is about that.