oss上传远程主机强迫关闭了一个现有的连接

客户的机器上传报错，但是其他客户上传一切正常，是不是有ip白名单限制？客户使用的是校园网。
客户的ip
218.75.210.177  湖南省株洲市 电信


Unable to write data to the transport connection: 远程主机强迫关闭了一个现有的连接。.
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   at System.Net.ConnectStream.InternalWrite(Boolean async, Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)
   at System.Net.ConnectStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   at Aliyun.OSS.Util.IoUtils.WriteTo(Stream orignStream, Stream destStream, Int64 totalSize)
   at Aliyun.OSS.Common.Communication.ServiceClientImpl.SetRequestContent(HttpWebRequest webRequest, ServiceRequest serviceRequest, Boolean async, OssAction asyncCallback)
   at Aliyun.OSS.Common.Communication.ServiceClientImpl.SendCore(ServiceRequest serviceRequest, ExecutionContext context)
   at Aliyun.OSS.Common.Communication.ServiceClient.Send(ServiceRequest request, ExecutionContext context)
   at Aliyun.OSS.Common.Communication.RetryableServiceClient.SendImpl(ServiceRequest request, ExecutionContext context, Int32 retryTimes)
   at Aliyun.OSS.Common.Communication.RetryableServiceClient.Send(ServiceRequest request, ExecutionContext context)
   at Aliyun.OSS.Commands.OssCommand.Execute()
   at Aliyun.OSS.OssClient.PutObject(String bucketName, String key, Stream content, ObjectMetadata metadata)
   at Aliyun.OSS.OssClient.PutObject(String bucketName, String key, Stream content)
   at WindowsFormsApplication1.Form1.button3_Click(Object sender, EventArgs e)