Comcast Internet Modem

[genesis6791]

When I connect an ethernet to the Comcast Modem it does not provide connection through ethernet even though the modem has 4 ethernet slots. Any suggestions?

 

[USAFRet]

When I connect an ethernet to the Comcast Modem it does not provide connection through ethernet even though the modem has 4 ethernet slots. Any suggestions?

Entirely unsure of what you are trying to do here.

"connect an ethernet" ?

Please describe, in as much detail as you can, what you have and what you are trying to do.