said by bri5k :

Thanks for the pointer... I didn't know I could check the log for the modem.

When the modem, it seems to be having trouble downloading the cable modem configuration file ("Invalid Type"). Is this how it should go for Charter, or not?

080209112241 7-Information F502.1 Bridge Forwarding Enabled.
080209112241 7-Information F502.3 Bridge Learning Enabled.
080209112241 7-Information B518.0 Baseline Privacy is skipped
080209112240 7-Information I500.0 Registration Completed
080209112240 7-Information I0.0 REG-RSP Registration Response
080209112240 7-Information I0.0 REG-REQ Registration Request
080209112240 7-Information D509.0 Retrieved TFTP Config File SUCCESS
080209112240 4-Error D503.0 TFTP, Invalid type, CONTINUE
080209112240 4-Error D503.0 TFTP, Invalid type, CONTINUE
080209112240 4-Error D503.0 TFTP, Invalid type, CONTINUE
080209112240 4-Error D503.0 TFTP, Invalid type, CONTINUE
080209112240 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D520.2 DHCP Attempt# 1 BkOff: 5s Tot DSC:1 OFF:1 REQ:1 ACK:1
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 40, tempSid 104
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 7-Information T501.0 Acquired Downstream (687000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 687000000, US Id 3
************ 7-Information I510.0 *** BOOTING *** SB4100-0.4.5.0-SCM00-NOSH