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The problem is with the devcoind daemon, or at least between the daemon and the server. I'm not sure if I've somehow inadvertently blocked access to the network for the devcoin daemon or what, but the other daemons don't seem to be having any issues so I've done something specifically to this.
The P2Pool is running fine with the other merged mine coins (at least they seem to be, but we haven't found any blocks yet).
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I suggest a 24 share bounty to the pool which mines the first devcoin block with Sidhujag's daemon. Any objections?