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Like my TM822G's install, I'll keep this short and sweet. - I installed the TM822G's battery (sold seperatly). - Connected my existing cable to the TM822G's cable input. - Connected my PC's network cable directly to the TM822G's ethernet port. - Connected my telephone line to the TM822G's Tel 1 input. - Connected power to the TM822G. After a couple of minutes, the PC acquired an IP address. Then I performed the following steps. Opened the Web browser to -[comcast.com/activate] As prompted, I entered my account number and telephone, then selected next. The TM822G had little activity followed by the browser prompt for me to verify the CMAC matched the oned displayed in the browser. The remaining prompt was to verify that I wanted to activate the device. Upon verifying that I wanted to activate the device, the device reset several times, completed the the provisioning/setup process and ended with confirmation that the device setup was complete. The completion screen also provided a link to test my telephone's operatoin, with an automated test call, which was also good. I finished things up with a speed test - DL=25.48/UL=4.03. Then I disconnected my PC's network cable from the TM822G and connected it's original port on my wireless router, connected my wireless router's WAN connection port to the TM822G and power cycled my wireless router. Within a minute, the rest of my network was up. Overall, the setup was easy. No interaction was required by company X. Don't pay company X to do it. Just be sure that you buy a device that isn't attached to someone else's account and you should be fine. Good Luck! *** Added 3/6/15 - It's been a couple of years now and I'm still loving my TM822G. *** Added 1/18/18 - Increased speeds. 12ms ping with 244MbpsDL and 12MbpsUL speeds.