The loss at hop 1 just means that router is not responding to ICMP. The fact that you are hitting hop 2 with 9ms shows that hop 1 is doing fine. There are several reasons this may be showing a timeout. Could be ICMP is turned off or that traffic utilization at the time requires that hop (router) to drop the ICMP packet for a higher priority packet. As long as you are looking good at the next hop I wouldn