Hello. My name is***** to JustAnswer. I'm reviewing your question now, and will post back with your reply momentarily.
The security key (sometimes called a network key, a passphrase, or a network password) should be listed nearby. Different router manufacturers have different settings pages. It is what you set up as your 'password' on your router or look on the bottom of the router if you
have not already set one yourself. It should be on a label there.
Let me know how you would like to proceed. Most Arris is a modem/router in one, depending on the model.
Can you send me the exact arris model and exact netgear router model if you still need help? Until then,
enter your password ***** 'network security key' comes up and it should allow you to connect.
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