I have been having intermittent "cannot access...", "connection timeouts" issues.
ping to the gateway :
Sat, 2 Mar 2013 20:41:09 -0500 (EST)
PING 108.53.3.1 (108.53.3.1): 56 data bytes
64 bytes from 108.53.3.1: icmp_seq=0 ttl=126 time=48.772 ms
64 bytes from 108.53.3.1: icmp_seq=1 ttl=126 time=160.943 ms
64 bytes from 108.53.3.1: icmp_seq=2 ttl=126 time=60.238 ms
64 bytes from 108.53.3.1: icmp_seq=3 ttl=126 time=47.111 ms
64 bytes from 108.53.3.1: icmp_seq=4 ttl=126 time=65.939 ms
64 bytes from 108.53.3.1: icmp_seq=5 ttl=126 time=117.393 ms
64 bytes from 108.53.3.1: icmp_seq=6 ttl=126 time=299.012 ms
64 bytes from 108.53.3.1: icmp_seq=7 ttl=126 time=95.290 ms
64 bytes from 108.53.3.1: icmp_seq=8 ttl=126 time=68.621 ms
--- 108.53.3.1 ping statistics ---
9 packets transmitted, 9 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 47.111/107.035/299.012/76.264 ms
This is most apparent in the evenings.
During the day the respoinse is more like:
64 bytes from 108.53.3.1: icmp_seq=0 ttl=126 time=8.603 ms
64 bytes from 108.53.3.1: icmp_seq=1 ttl=126 time=7.499 ms
64 bytes from 108.53.3.1: icmp_seq=2 ttl=126 time=5.304 ms
64 bytes from 108.53.3.1: icmp_seq=3 ttl=126 time=10.338 ms
64 bytes from 108.53.3.1: icmp_seq=4 ttl=126 time=6.980 ms
64 bytes from 108.53.3.1: icmp_seq=5 ttl=126 time=8.220 ms
64 bytes from 108.53.3.1: icmp_seq=6 ttl=126 time=31.630 ms
64 bytes from 108.53.3.1: icmp_seq=7 ttl=126 time=8.522 ms
64 bytes from 108.53.3.1: icmp_seq=8 ttl=126 time=14.447 ms
--- 108.53.3.1 ping statistics ---
9 packets transmitted, 9 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 5.304/11.283/31.630/7.584 ms
PS this is same gateway which is not shown in traceroute
http://forums.verizon.com/t5/FiOS-Internet/gateway-not-shown-in-traceroute/m-p/544947#M36162