In general, the ping time out is noticed because of following reasons:1) Some routers are intentionally being configured ...

In general, the ping time out is noticed because of following reasons:1) Some routers are intentionally being configured to drop ICMP request packets.2) Some part of the network is experiencing high traffic which in turn causes loss of ICMP reply or delay in reply.Therefore ICMP ping time out does not gaurantee whether a path to remote host exists or not.Please check the results of trace route and tcp ping to check reachability to remote host.