Is an online purchase a good way to go, or should I find a corporate store? I got my i Phone 7 and went through the whole process on the phone to set it up, but when I was done my phone was not connected to Verizon. I was going to use it and let it drain then charge it.
While you are in the Control Center, look at the Airplane Mode icon next to the Wi-Fi icon.
If you left your i Phone in Airplane Mode after a recent trip, your Wi-Fi is disabled. Not all Wi-Fi networks are available to the general public.
At this point, if your i Phone still can't connect to Wi-Fi, it may have a hardware problem, and hardware problems are best diagnosed and repaired by a designated Apple service provider.
Take your i Phone to your nearest Apple Store for a checkup or contact Apple support online for alternatives.
Apple regularly releases updates to i OS that are designed address incompatibilities. To check for i OS updates: Your phone's Network Settings contain all kinds of information, including connection data and preferences for cellular and Wi-Fi networks.