it 's just in block 18457 ,can not Synchronize more

and repeate the error like follow


2014-Jun-22 07:02:50.236581 [P2P3]Block recognized as orphaned and rejected, id
= <9c626a62eff6c67f6398f5a638a71adf2536a147cecf7dce723d29159a5677be>
2014-Jun-22 07:02:50.244581 [P2P3][123.166.71.210:23080 OUT]Block received at sy
nc phase was marked as orphaned, dropping connection
2014-Jun-22 07:02:57.
2014-Jun-22 07:02:50.236581 [P2P3]Block recognized as orphaned and rejected, id
= <9c626a62eff6c67f6398f5a638a71adf2536a147cecf7dce723d29159a5677be>
2014-Jun-22 07:02:50.244581 [P2P3][123.166.71.210:23080 OUT]Block received at sy
nc phase was marked as orphaned, dropping connection
2014-Jun-22 07:02:57.259982 [P2P3][178.44.112.5:23080 OUT]Sync data returned unk
nown top block: 18457 -> 30918 [12461 blocks (17 days) behind]
SYNCHRONIZATION started

2014-Jun-22 07:02:50.236581 [P2P3]Block recognized as orphaned and rejected, id
= <9c626a62eff6c67f6398f5a638a71adf2536a147cecf7dce723d29159a5677be>
2014-Jun-22 07:02:50.244581 [P2P3][123.166.71.210:23080 OUT]Block received at sy
nc phase was marked as orphaned, dropping connection
2014-Jun-22 07:02:57.259982 [P2P3][178.44.112.5:23080 OUT]Sync data returned unk
nown top block: 18457 -> 30918 [12461 blocks (17 days) behind]
SYNCHRONIZATION started[P2P3][178.44.112.5:23080 OUT]Sync data returned unk
nown top block: 18457 -> 30918 [12461 blocks (17 days) behind]
SYNCHRONIZATION started