Hello,
Here’s how you can change your network security key:
- Open a web browser and type in your router’s IP address (commonly something like 192.168.1.1 or 192.168.0.1).Log in with your admin username and password. If you haven’t changed these, they might be on a sticker on your router.
2.Look for a section labeled Wireless, Wi-Fi, or WLAN.Find the Securityor Password section.Enter your new security key (make sure it’s strong and unique).Save the changes.
I suggest you refer to the following link;
What is a Network Security Key? And where to Find it - LazyAdmin
Disclaimer: The above mentioned links are not from Microsoft's official website. The information provided on these pages is relatively accurate and reliable. However, you should be aware that these pages may contain product advertisements that you may not need, so please read them carefully and confirm that they are what you need before you download and install these advertising products.
I hope the above information is helpful to you.
Best Regards
Zunhui