I wonder whether long polling doesn't work for me. I've got a rather high stale ratio (about 4-5%) and there're always a few rejected shares reported by phoenix just about the time there's a new block solved on DeepBit. E.g. (times are GMT+4)
Hello.
Have you tried to use some other miner like poclbm to see if it's miner of connection problem ?
Do you use some kind of proxy/firewall that can break LP connections ?