We have a mitigating fix for the network crash pending in the toolkit repository. We will have to wait for DAC Sun Limited to update their master branch.
Some general observations for delegates:
1) Your client is more likely to crash if you have more connections.
2) We are preparing a new command line argument that will disable incoming connections
3) We recommend delegates produce blocks from a node with no incoming connections and perhaps 20 outgoing connections.
4) We recommend delegates ALSO host a public node with a lot of connections to support the network.
5) If the computer has enough RAM running both on the same machine is possible.
We are preparing a post about using a Chain Server for rapid download from a trusted source. Nathan is preparing a How To. For those having trouble syncing directly from P2P clients this alternative may work for you.