EX:The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. 这个是证书引起的.. 用IE浏览器访问接口,右击浏览器窗口,现在属性.查看证书. 应该是不可以的. 应该安装证书.…
使用WebClient 发送https请求 使用WebClient发送请求时,并且是以https协议: WebClient webClient = new WebClient(); string result = webClient.DownloadString(url); error : The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure chan…
写在前面 在模拟请求的时候,如果url为https的,会报这个错误.大概错误就是:基础连接已关闭:无法建立信任关系的SSL / TLS的安全通道. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. 基础连接已关闭:无法建立信任关系的SSL / TLS的安全通道. 解决办法 在模拟请求的方法中加上这样一句话. ServicePoin…
突然在调用微信接口是报:The underlying connection was closed: An unexpected error occurred on a send错误,跟踪了半天,是因为在调用阿里人脸识别接口时,接认证设置成了SSL3,而微信接口支持TLS,所以就会报错.并且在更新后又正常的问题, ServicePointManager.SecurityProtocol = SecurityProtocolType.SSL3;…
操作系统是Windows Server 2003 x64 SP2,使用Framework 4.0,在使用WebClient访问某些特定的HTTPS站点时,会引发异常: Unhandled Exception: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Authentication…
公司内部开发的winform程序使用了FtpWebRequest下载FTP服务器的文件到本地. 大多数人运行良好,由于我们是试运行逐步有人加入到平台的使用,前两天突然有个别机器无法连接FTP服务器报出了如下错误. The underlying connection was closed:The connection was closed unexpectedly 进行排查没有发现异常,windows事件管理器中查看也没有相关的错误.写的代码也没有发现什么不对的地方 FtpWebRequest r…
最近做了一个安装包,安装包会弹出dotnet的 窗体,这个安装包会去调用https的一个api.用测试程序测试窗体都是好的.一旦打入安装包后,就报错.研究了半天,原来是https惹的祸 解决方案: .NET 4.6 and above. You don’t need to do any additional work to support TLS 1.2, it’s supported by default.DOTNET 4.6.1 以上版本,默认就可以了 .NET 4.5. TLS 1.2 i…
当在internet发布用ClickOnce打包的客户端程序时,遇到ClickOnce启动后出错,错误信息如下: + Downloading https://xxxxx/Deploy/pc/Booter.application did not succeed. + The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. + The…
当我在用NET命名空间下获取URL的时候,提示如下错误: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. 使用传输安全模式,证书建立SSL,宿主端口证书配置完毕,但是客户调用服务出错. Could not establish trust relationship for the SSL/TLS secure channel wi…
最近在写一个跟第三方对接的数据同步服务,在本地都没有问题,今天放到生产环境测试报错: System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. 对方用的是https,看错误是证书问题,查了一些资料,貌似说这个问题的比较少,所以在此总结一下,以防以后用到. public string Get…
RNIF BAM Tracking Error  解决办法:  503: Service Unavailable   解决办法:IIS 应用程序池运行账户用户名或密码错误,用户名不能是domain\username格式,直接使用username public initiator terminated on time out to receive a signal for the async action message   解决办法:只安装Certification Authorit…
好久没写博客了,今天突然遇到个神奇的问题. 做好的网站在win10上和Windows sever 2012 上都没有问题,搬到Windows sever 2003上就出现了这么一个错误: Server Error in '/' Application. The remote certificate is invalid according to the validation procedure. Description: An unhandled exception occurred durin…
在用HttpClient发起https请求时,遭遇了“The remote certificate is invalid according to the validation procedure”异常,异常信息如下: Exception Details: System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation pro…