@Michelle_Sheldon_Her along with Bob’s questions, what connection method are you using? Bluetooth from your computer/device, Bluetooth through the Companion App, ANT+? This seems to be a common challenge on new setup startup and can usually be solved with enough information and some exploration to find and solve the problem. I went through a lot of this and thus try to help folks out. The more info you can provide, the better we can do to help you out.
There is a great guide of what info to provide that helps folks debug issues. Please see the forum topic Guide to Getting Useful Support and toss back the info suggested there and we’ll see what we can do to help you get Zwift running.