Why is my laptop not recognizing my external CD/DVD drive?

Check that the power cable connecting the external drive to your laptop is securely plugged in.
Examine the USB port for any signs of damage such as bent, broken, or bulging pins.
Check the external drive for any signs of physical damage, such as defects or loose connections.
Check the cable connecting the external drive to the laptop for any damage.
Check that your laptop’s operating system is up to date with the latest updates.
Ensure that the external drive is compatible with your laptop’s operating system.
Check your laptop’s device manager for any entries related to the external drive.
Attempt to reset the external drive by disconnecting then reconnecting it to your laptop.
If the issue persists, then you may need to consider replacing the external drive.