Hi Ridgely,

After activating the modem unable to connect to internet , check the followings to ensure for a better internet :

Check if the lights on G34  are Solid blue then try doing a Self Activation with your COX App .

If still unable to connect to internet try doing a  Reset and try again .

If the lights on G34 are Flashing Green then its searching for downstream and upstream channels of the cable signals .

In both LED light status try doing a Re-Provision(remove HFC MAC ID and add it back and activate it again ).

Also make sure  your ISP(Internet Service Provider) had removed your previous (netgear )HFC MAC ID .

Apart from the above, check with the below points also:

• Ensure Co-axial cable is connected tight and power cable as well
• Placing your gateway in the center of your home 
• Don’t put it behind any electronics or appliances
• Don’t put it too close to cordless phones (landline not cell), baby monitors, or your microwave
• Make sure it’s not behind a metal or concrete wall as the signal has a hard time going through them

Check with the below link for the Reset :

http://arris.force.com/consumers/articles/General_FAQs/G34-G36-Factory-Reset

Let us know if this helps.