comcast routing contact needed (wheeling/weirton, wv)

Can a router-handy person with Comcast contact me off-list? We have a customer that is having problems between a branch office on our network, and their HQ's Comcast connection--seems like packets from (at least) one particular IP on their net here are going awry in Comcast somewhere. Thanks! jason jeffries - jjeffries@labs.net labyrinth solutions - as26097