Does the phone part work?
Once the modem is activated, the startup sequence for the remainder of your LAN is important.
Power down the modem, pull the power cord, and disconnect the Ethernet cable.
Power down your computer.
Power up the modem and give it plenty of time to boot and stabilize. One of the last indicators to illuminate will be the one showing internet access. If you have the internet access indicator illuminated, do the phone indicators illuminate? Does the phone work?
Connect your computer direct to the modem via an Ethernet cable. Boot up your computer and give it plenty of time to obtain an IP address from Xfinity. It could take several minutes being the first time and in this configuration. Note the network icon on your computer and internet connection status.
Once the computer is directly connected to the internet modem with internet access, this is a good time to test your throughput capacity. Recommend you install the native Ookla application for your computer. This keeps the web browsers out of the mix.
