"How do I set things up so all ports are working?"
Pretty sure like 99.999% until you setup stuff that switch will act just like any dumb switch.. All ports in vlan 1.. What Kpa already stated ;)
What specific model do you have - there are a lot of them..
Yeah says so right on their page - if you want to use it as dumb switch you just plug it in..
https://www.netgear.com/images/datasheet/common/202-11700-01-WebManagedSwitches-UM.pdf
Configure the Switch
ProSAFE Web Managed (Plus) Switches are Plug-and-Play, so they can be used without any configuration. Just connect power, connect to your network and to your other devices, and you’re done. You can also configure and manage additional advanced features of the switch either by using your computer’s web browser or by installing the ProSAFE Plus Utility on your Windows-based computer.