使用qrsboxcli同步目录时，报这个错误，请问是什么原因啊？

34: ResumableBlockput: bput failed - Post http://up.qiniu.com/bput/hNuyMfsACuwhn
HFVGyf8egHe4I-8KBcnFOfim3pGKC53B-4Eg8xCucrOrQ7oPWqUojpd2rElqeGdiwFjptifd8eXP9dso
aMMIdBaMJrV3SG3xtZBigCASuJxTAASPQ6QtSekVnfHKApVu-9zTwAAAAAAABgAAAAAAAAAQAAAABgAM
jBrQUFMblVqVllMVENjQQ==/1572864: WSARecv tcp 192.168.1.238:64146: An established
connection was aborted by the software in your host machine.
2016/01/07 16:24:28.905235 INFO up_api.go:1
38: ResumableBlockput retrying ...
2016/01/07 16:25:15.412895 WARN up_api.go:1
34: ResumableBlockput: bput failed - Post http://up.qiniu.com/bput/9STNjLqToDgOj
gjyCXUarQEoTzdUKxcnFH25KyBbn8aaK_extf5ubyKMT9no1RKd0PFeODSRqo1r89AEH10zKu1kYSp26
Aj9gfo1S3PEkwcjmGE0TmJb1j1djm5zD5Oaq-aA5NVIZaq3Osn_pwAAAAAAACAAAAAAAAAAQAAAACAAR
mtzQUFNMzlqVmFDZHhFQQ==/2097152: EOF
2016/01/07 16:25:15.412895 INFO up_api.go:1
38: ResumableBlockput retrying ...