Xfinity: We’re missing some information about your modem. Call us today

[Sandy]

Guess I'm not the only one dealing with this.

http://forums.xfinity.com/t5/Customer-Se...-p/2930443

[occalifornia]

probably an upsell technique or a bait and switch to encourage customers to lease a modem or upgrade to a D3 model that they can be sold.