High latency

Since moving to Comcast Business Class Internet (from Comcast Personal Class Internet), my connectivity has gotten worse.  I frequqently experience loss of connectivity, my VPNs disconnect during the day, video/audio conferening drops, streaming (Netflix on Wii) buffers several times during a 30 minute TV show, and gaming has become a problem.

I ran a test over the weekend and can see ping times exceeding 300ms, and even 600ms for extended periods of time.

Any recommendations?

I've always had excellent service with my personal Comcast line, so I was expecting my business line to even further surpass my expectations.

Thanks.

-r

Russ Foster