Wow! Health Edge, thanks for pointing out the error; I thought I had recovered from New Year's Eve but apparently not. You are correct, roughly I just multiplied every thing by about 1K. Unfortnately that applies to my rates as well, so the correct statement would be that "I often see 10 B/s or less."
I didn't mean to be confusing (other than a three-orders of magnituded error, that is.) It wasn't my intent to explaining the problem in enough detail to get technical responses; I was just seeking suggestions on how to get a resonse from Cox. (Looks like I got one from TiffanyR.)
To answer the questions you raised, I do have a router but the problem occurs with different computers with the router both in and out of line. At present I'm using a Linksys BUFCMU10 modem. However, in the time I have been working this problem I have changed modems once and routers twice, using both Linksys and Netgear. Below is a traffic chart that is not uncommon.