Tracing route to 137.221.105.2 over a maximum of 30 hops 0 Riverrun [192.168.1.130] 1 LinksysB0769 [192.168.1.1] 2 10.97.100.1 3 100.127.77.2 4 100.120.100.40 5 68.1....
Looks more like hop 5 is choosing to ignore ICMP packets. Might not be a legitimate test. Post your modem logs and signal levels to rule out problems in the RF network.
