HP Keyboard Number Pad creates error sound on Mac

[OmarAdelOsman]

Hello, everyone.

I recently purchased the Pavilion Wireless Keyboard and Mouse 800. and connected them to my Macbook Pro Retina Late 2011.

They work fine in general with the exception of the keypad on the right.

using the keypad either correctly enters the number I clicked, but with an error sound,
or, on excel for example, enters a strange character before every number.
I already tried searching a lot of forums, and I have no found anyone with a problem similar to mine. 
I tried going to System Preference>Keyboard Settings and nothing there changes the problem.

I would be very grateful if anyone can help.

Thank you.

[Echo_Lake]

@OmarAdelOsman
Thank you for posting on the HP Support Community.

This sounds like hardware related issue with the HP keyboard. Hence, I would request you to contact our Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link:  www.hp.com/contacthp/

Before reaching out to our HP support try updating the software on your Mac device and also resync the Keyboard and Mouse: https://support.hp.com/in-en/document/c00006821

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.