Everything was working fine untill I unplugged the cable modem last week. We have a Motorola 4100 Surfboard, and am using Optimum Online. All the lights are flashing green, including the Activity light, it claims the Ethernet Connection is functioning in the toolbar, at 100.0mb/s . But we're not able to send out ANY email or reach any web pages since it was unplugged.. I didn't change any settings either... Any help will be appreciated..