Dell keyboard not working

What is the system model and the OS installed?  Also, what is the Dell Keyboard you purchased and is not working?

To receive assistance from Dell chat support, they need to verify the warranty status and ownership. Then you must troubleshoot with them.  Click the "Get Help Now" icon on the right to start a live chat session. If already out of warranty, click here for the Dell out of warranty offering.

Please share the model number and specify whether it's a USB or Bluetooth keyboard. If you're still within the replacement window, you can go ahead and request a replacement.