Connection refused by Update server... Update server may be down.

连接被更新服务器拒绝…更新服务器可能是关闭的。

That can also be one of the reasons for the "Connection refused" message.

这也是产生“拒绝连接”信息的原因中的一个。

The default value is 250, which means the 251st client that tries to connect will get a Connection Refused response.

缺省值为 250，意味着尝试连接的第 251 个客户机将获得“访问被拒绝”响应。

If the connection fails, then either a connection timeout or a connection refused message will be displayed (see Listing 10).

如果连接失败，那么会显示连接超时或拒绝连接消息(见清单10)。

If a channel start is attempted using a revoked certificate credential, the check of the local CRL copy will generate a hit and the connection will be refused.

如果一个通道企图使用一个已撤销的证书启动，对CRL的本地副本的检查将生成一个错误，这个连接将被拒绝。