Windows 7 Homegroup - Wired and Wireless Network

Hi - Searched the forum, but could not find an answer to this question.

I have one computer hooked up directly to our router, and two others connecting through wireless on the same router. Homegroup does not allow the wired and wireless computers to connect.

Are there any setting I could change on the router or in the software that will allow this?

Thank you,
KG