客户端无法与服务器建立连接(拖拽一个文件夹用于同步)

新手,请多担待,客户端版本windows7.07,服务器是win2012r2 免费版 。客户端日志文件显示
2020-05-11 20:41:52,628 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:42:17,286 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:42:42,286 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:43:07,298 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:43:32,292 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:43:57,296 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:44:22,301 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:44:47,288 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:45:12,302 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:45:37,308 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:48:33,081 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:48:56,118 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:49:21,109 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:49:46,114 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:50:11,118 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:50:36,111 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:51:01,114 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:51:26,118 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:51:51,122 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:52:16,125 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:52:41,128 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:53:06,122 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:53:31,128 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:53:56,118 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:54:21,121 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:54:46,125 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:55:11,128 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:55:36,131 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:56:01,125 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:56:26,128 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:56:51,121 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:57:16,125 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version
2020-05-11 20:57:41,128 [WARNING] django.request:170 get_response Not Found: /seafhttp/protocol-version

网页上传下载都正常,客户端单独上传单个文件 下载单个文件都正常,同步功能异常(拖拽一个文件夹以同步到服务器),会创建一个资料库文件夹,并显示无法与服务器建立连接的提示。

网页设置是一个独立IP 例如http://11.11.11.11:9000
另一个端口设置为http://11.11.11.11:9092
并绑定了域名 如abc.cn 客户端添加的地址为http://www.abc.cn:9000

首次安装客户端添加地址abc.cn:9000 也可以登录进去