High ping with Airport Time Capsule & Comcast ISP

There seems to be a lot of latency with my new setup. I don't know whether this is a ISP or a hardware issue. The router is about 6 ft away from the 2011 MBA. My parent's Linksys Dual Band WRT610 had a 12ms ping with the same internet plan, yet it was buried deep in the basement . Don't know whether I should take into the account the modem's model; have the SB6121 Moto Surfboard


via www.speedtest.net