it's either the miners or the pool, this is the output i am getting form the pool:-
2015-05-06 11:54:11.680281 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:11.680453 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:11.680549 Target: 1b2bba5ff26a23000000000000000000000000000000000000000000000000
2015-05-06 11:54:11.683432 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:11.683543 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:11.683685 Target: 1b2bba5ff26a23000000000000000000000000000000000000000000000000
2015-05-06 11:54:12.075911 GOT SHARE! 5tEMroG8umWezhg9AZD3zRQR344aPiujPS 27e96a39 prev 18481c8a age 9.55s
2015-05-06 11:54:12.088496 New work for worker! Difficulty: 0.000000 Share difficulty: 0.000001 Total block value: 50.000002 BCR including 1 transactions
2015-05-06 11:54:12.114716 GOT SHARE! 5vvturZwfcR77vnETZURvXwLtQEWGmtCAH cac5bafa prev 18481c8a age 9.60s DEAD ON ARRIVAL
2015-05-06 11:54:12.473464 GOT SHARE! 5ysLXT3jmb66p7qytMFgbBQekX2192FjYK bb77ace7 prev d53ae93a age 0.38s
2015-05-06 11:54:13.290494 P2Pool: 4 shares in chain (88 verified/88 total) Peers: 1 (0 incoming)
2015-05-06 11:54:13.290625 Local: 1627H/s in last 1.3 minutes Local dead on arrival: ~31.3% (24-40%) Expected time to share: 0.9 seconds
2015-05-06 11:54:13.290693 Shares: 87 (53 orphan, 30 dead) Stale rate: ~95.4% (88-99%) Efficiency: ~8.0% (3-20%) Current payout: (0.0000)=0.0000 BCR
2015-05-06 11:54:13.290759 Pool: 44H/s Stale rate: 42.9% Expected time to block: 15.0 hours
2015-05-06 11:54:13.783478 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:13.783630 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:13.783695 Target: 1df75680feb65f000000000000000000000000000000000000000000000000
2015-05-06 11:54:13.791153 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:13.791297 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:13.791382 Target: 1df75680feb65f000000000000000000000000000000000000000000000000
2015-05-06 11:54:15.099984 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:15.100145 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:15.100240 Target: 1df75680feb65f000000000000000000000000000000000000000000000000
2015-05-06 11:54:15.100836 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:15.100935 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:15.101029 Target: 1df75680feb65f000000000000000000000000000000000000000000000000
2015-05-06 11:54:15.640068 GOT SHARE! 5tEMroG8umWezhg9AZD3zRQR344aPiujPS 57bb75c9 prev 6173e7bf age 3.14s
2015-05-06 11:54:16.292202 P2Pool: 5 shares in chain (89 verified/89 total) Peers: 1 (0 incoming)
2015-05-06 11:54:16.292337 Local: 1648H/s in last 1.3 minutes Local dead on arrival: ~31.4% (24-40%) Expected time to share: 0.9 seconds
2015-05-06 11:54:16.292391 Shares: 88 (49 orphan, 34 dead) Stale rate: ~94.3% (87-98%) Efficiency: ~10.2% (4-23%) Current payout: (0.0000)=0.0000 BCR
2015-05-06 11:54:16.292466 Pool: 614H/s Stale rate: 44.4% Expected time to block: 1.1 hours
2015-05-06 11:54:16.341480 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:16.341663 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:16.341755 Target: 1ef4fee96309cc000000000000000000000000000000000000000000000000
2015-05-06 11:54:16.347113 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:16.347283 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:16.347384 Target: 1ef4fee96309cc000000000000000000000000000000000000000000000000
2015-05-06 11:54:18.112740 Worker 6E4ggFg78uEJoHdwE4N9PH2CNhNZE4JWVu submitted share with hash > target:
2015-05-06 11:54:18.112915 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee4
2015-05-06 11:54:18.112981 Target: 1ef4fee96309cc000000000000000000000000000000000000000000000000
2015-05-06 11:54:18.114155 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:18.114268 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:18.114377 Target: 1ef4fee96309cc000000000000000000000000000000000000000000000000
2015-05-06 11:54:18.115295 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:18.115386 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:18.115448 Target: 1ef4fee96309cc000000000000000000000000000000000000000000000000
2015-05-06 11:54:18.209076 GOT SHARE! 5tST3vaooyoxY3KjtVrGTzfdNS8CV4GmXq bbbe05ff prev 57f97f79 age 2.53s
2015-05-06 11:54:18.221494 New work for worker! Difficulty: 0.000001 Share difficulty: 0.000001 Total block value: 50.000002 BCR including 1 transactions
2015-05-06 11:54:19.294014 P2Pool: 7 shares in chain (91 verified/91 total) Peers: 1 (0 incoming)
2015-05-06 11:54:19.294154 Local: 1666H/s in last 1.4 minutes Local dead on arrival: ~30.7% (23-39%) Expected time to share: 1.0 seconds
2015-05-06 11:54:19.294206 Shares: 89 (49 orphan, 34 dead) Stale rate: ~93.3% (86-97%) Efficiency: ~12.5% (5-26%) Current payout: (0.0000)=0.0000 BCR
2015-05-06 11:54:19.294289 Pool: 194H/s Stale rate: 46.2% Expected time to block: 3.5 hours
2015-05-06 11:54:19.752108 GOT SHARE! 68UhXgDodiPco7geua2GpW9SuQKMe7J29f c5475e7a prev 68ac1fe6 age 0.35s
2015-05-06 11:54:19.998840 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:19.998983 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:19.999043 Target: 1d3b25ae3e929d000000000000000000000000000000000000000000000000
2015-05-06 11:54:19.999567 Worker 5v9JksHMsEdhHAaHDtUxoNhB3juiXs6ucU submitted share with hash > target:
2015-05-06 11:54:19.999637 Hash: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeee1
2015-05-06 11:54:19.999698 Target: 1d3b25ae3e929d000000000000000000000000000000000000000000000000
2015-05-06 11:54:20.244204 GOT SHARE! 5qN3ZasN345N5UoEVg2iZ4DtwA8YjyjJic 12f71308 prev c5475e7a age 0.48s
2015-05-06 11:54:20.314292 GOT SHARE! 6Bf2ZzjdK8h98YRjB5FGiyB9DCuFGZxnxN f7834adb prev c5475e7a age 0.53s DEAD ON ARRIVAL
debug:-
2015-05-06 11:58:52 CActiveBanknode::Dseep() - SendDarkSendElectionEntryPing vin = CTxIn(COutPoint(4beccdfc1e, 1), scriptSig=)
2015-05-06 11:58:56 peer=2792 using obsolete version 70007; disconnecting
2015-05-06 11:58:56 ProcessMessage(version, 104 bytes) FAILED peer=2792
2015-05-06 11:59:03 peer=2793 using obsolete version 70007; disconnecting
2015-05-06 11:59:03 ProcessMessage(version, 104 bytes) FAILED peer=2793
2015-05-06 11:59:12 peer=2794 using obsolete version 70007; disconnecting
2015-05-06 11:59:12 ProcessMessage(version, 104 bytes) FAILED peer=2794
2015-05-06 11:59:31 peer=2795 using obsolete version 70007; disconnecting
2015-05-06 11:59:31 ProcessMessage(version, 104 bytes) FAILED peer=2795
2015-05-06 11:59:52 CActiveBanknode::Dseep() - SendDarkSendElectionEntryPing vin = CTxIn(COutPoint(4beccdfc1e, 1), scriptSig=)
2015-05-06 11:59:59 peer=2796 using obsolete version 70007; disconnecting
2015-05-06 11:59:59 ProcessMessage(version, 104 bytes) FAILED peer=2796
2015-05-06 12:00:08 connect() to 198.52.200.60:8877 failed after select(): Connection refused (111)
2015-05-06 12:00:20 CDarkSendPool::UpdateState() == 3 | 3
2015-05-06 12:00:20 peer=2797 using obsolete version 70007; disconnecting
2015-05-06 12:00:20 ProcessMessage(version, 104 bytes) FAILED peer=2797
seems there are still stragglers on the old code. but their clients are rejected immediately.