This morning (June 30th) from approximately 1:15 AM - 1:35 AM, I experienced very high packet loss and latency from the Ashburn, VA tunnel broker server. I use pfsense on my router and it does a simple ping test to monitor latency on each gateway. The monitoring page showed an average ping time of 1283 ms and packet loss of 38% at 1:25 AM (5 minute average). I actually pinged Google when I started experiencing issues and found pings over 10,000ms. Under normal circumstances, my average ping time to the Ashburn server is 3 - 5 ms. During the same period, my WAN experienced no increase in latency or packet loss (3 ms and 0%, respectively). I am approximately 25 miles from the Ashburn, VA server.
(http://i.imgur.com/e0NdCxV.png)
I just saw the same behavior last night at around the same time (1:10 AM - 1:30 AM EST).
HE Tunnel Latency
(http://i.imgur.com/qKOMSrY.png)
Verizon FiOS WAN Latency
(http://i.imgur.com/C7K0i3z.png)