i-cable Cisco DPC3000 web management

I can't open http://192.168.100.1 to view connection statistics (Rx/Tx signal level, SNR, channel bonding etc.). Is the web management disabled by i-cable's firmware?

Will i-cable activate my own modem (DPC3008, SB6141, SB6181)? If I bring my own modem, do they still push out the firmware to disable the web interface? idk which modems are currently supplied by i-cable.