[求助] 节点不缓存，出现错误

wj7843

ERROR

The requested URL could not be retrieved

当尝试取回该 URL 时遇到下面的错误：http://www.***.net/
目前无法将您的请求进行转送操作

This request could not be forwarded to the origin server or to any parent caches.

可能的问题包括：

An Internet connection needed to access this domains origin servers may be down.
All configured parent caches may be currently unreachable.
The administrator may not allow this cache to make direct connections to origin servers.
缓存服务器的管理员 webmaster.


已由 wdcdn (squid/3.1.22) 生成 Tue, 02 Jun 2015 13:10:04 GMT


节点缓存测试     结果：错误或未缓存

有几个节点都出现这个问题