Technicolor TC8305C

The FCC external photos indicate that this cable modem is used with Comcast's Xfinity service.
 * Comcast Wireless Gateway User Guide

Setup and User Guide MediaAccess TC8305C

8x4 DOCSIS 3.0

Per the FCC internal photos...
 * the SoC used is a BCM3383ZKFEBG (BCM3383 / BCM3383Z)
 * the GbE Switch is a BCM53124SKMMLG (BCM53124 / BCM53124S)
 * the RAM appears to be a Micron 2DGI2 D9MNJ (B887).


 * The battery shown in the FCC external photos is a Getac
 * BP-B210N-21/2600 S (Li-ion, 7.4V 2600mAh, 19.24Wh).
 * 1.2A rated, ~8 Watts or 14 VA at the wall synced with WiFi on, no traffic.


 * According to Comcast Help and Support:
 * A new battery may be purchased for $35.00 plus taxes and a $5.95 shipping fee.
 * Existing customers are eligible to purchase a new battery, which will be sent
 * to your Comcast service address and will arrive in about 7-10 business days.
 * If you would like to order a battery, please call us at 1-888-972-1261.
 * If you are a Comcast Business Voice customer, please call 1-800-391-3000
 * for details about the Comcast Business Voice battery replacement program.

The FCC label shows the default SSID pattern is HOME-XXXX, which should be the usual Comcast modem-router default SSID.

Default settings are from Comcast's customer support page.

Interesting features:
 * This device has a built-in Mongoose HTTP web server running on port 8080 (http://10.0.0.1:8080), that presents
 * a graph and a UI allowing you to interact with the chips spectrum analyzer. Only Safari and Chrome are supported.


 * The setup Wizard seems to have a problem with characters in a WPA2 PSK AES wi-fi password.