Locked Motorola SBG6580

Hello, we have a Motorola sbg6580 for 2 years. Has worked fine. Just last night internet stopped working. I rebooted modem many times, no help. Today I logged onto the gateway configuration and it appears to be locked. The network is fine - I can see other computers, just can't access the internet (I'm writing this laboriously on my tiny phone). The info is:

firmware: sbg6580-3.5.8.4-ga-00-505-nosh

mac address: e4:83:99:69:c1:11

On Connection page:

Under Startup Procedure it says Acquire Downstream Channel, Comment is locked.

Under Downstream Bonded Channels, all 8 channels show Locked.

Under Upstream Bonded Channels, the first two are locked, the last two are not locked. 

I assume t being being locked is why I cannot connect to internet. I have tried connecting my computer with actual cable or trying wireless, nothing works. Phone also cannot cnnect(using 3G). Any ideas?