when a user has no name, it deadlocks the network

[telephon]

where two computers have the same name, or nil, there is a constant flow of messages:

Peer nil rejoined the Utopia

[telephon]

Somewhere in

add {|peer|
        peer = peer.as(Peer);
        dict[peer.name] = peer;
        peer.addDependant(this);
        this.changed(\add, peer)
    }

we may have to check if it is duplicate with ref to IP address

[muellmusik]

Yes, I think that's sensible. Probably it should just use a kind of filename increment scheme (e.g. telephon-2) and post a warning.

[telephon]

Yes, if it warns once, this would be enough.