I have recently purchased a new two-in-one modem/router from Arris called the Surfboard SBG6900-AC AC1900. I read some instructions on how to activate a purchased modem and it says that once it comes online, I need to go online and go to register.xfinity.com. However, when the modem/router goes online and I try to connect to the webpage register.xfinity.com, I cannot connect. Can somebody help? Many thanks.
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