 <ul>   <li>This could be a problem with the server’s configuration, or it could be someone trying to impersonate the server.</li>   <li>If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.</li> </ul> 
<ul>  <li>这可能是服务器配置的问题，或是有人尝试冒充该服务器所致。</li>  <li>如果您之前曾成功连接该服务器，那么此这个错误可能是暂时的，您可以稍后再试试看。</li>  </ul>