Salutations Stean1544,
We’re thinking you mean that your’e attempting to connect to your iPad to a computer and have it recognized in the iTunes app. If we’ve misunderstood, let us know.
We’re linking a couple articles below with steps to take if your computer is not recognizing your device.
If your computer doesn't recognize your iPhone or iPad
Locate and view your iPhone or iPad on your computer
We’re summarizing the first article below, but be sure to pull it up when working through as it details each step.
1. Look in the Finder or iTunes
2. Update the software all devices.
3. Connect you device directly to your computer.
4. Trust your computer, if asked.
5. Allow the accessory to connect.
6. Restart your devices.
7. Try a different port, cable, or computer.
Thanks.