I am trying to install my new S33 modem however it is not an option in the app for installation so I don't know how to set up our modem
Solved
S33 first time installation
Best answer by SURFboard Moderator
S33 is just a plug and play device you can connect modem to power and coax then activate modem by your ISP internet service provider you can then for activation or you can do self activation on Xfinity app.
https://www.xfinity.com/support/articles/xfinity-app-activation
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