This message was added in conjunction with a property added to 'IntroscopeAgent*.profile' in 9.5.
When host name was not got in time (default 200ms) shown in property "introscope.agent.dns.lookup.max.wait.in.milliseconds", this message is output.
As for the cause, the problem of the network, the problem of the DNS server are thought about. It is necessary to judge it by the message except this message.
When host name is not usually provided, about the influence, it is thought that there is not the influence only by this message from the organization connected by an IP address.