WiFi Password Generator

How to Set a New WiFi Password

Generate a key of 20 characters or more, then copy it. Open your router's admin page — usually 192.168.0.1 or 192.168.1.1, or the manufacturer's mobile app — and sign in.

Find the wireless security section, confirm the security mode is WPA3 or WPA2-AES, and paste the new key in place of the old one. Save and let the router restart.

Every device will disconnect and must be rejoined with the new key. Reconnect your phone first, then laptops, then TVs, printers, and smart home devices. Store the key in a password manager so you never have to read it off a router label again.

What Makes a WiFi Key Strong

Attacks on WiFi work by capturing the handshake between a device and the router, then guessing the key offline as fast as hardware allows. There is no lockout to slow that down, so length is the only real defense.

A random 20-character key of mixed letters and digits creates far more possibilities than any wordlist-driven attack can cover. Router defaults printed on a sticker are often short or follow a predictable manufacturer format, which is why replacing them is worthwhile.

Avoid your address, family names, phone numbers, or the network name itself. Those appear in targeted guess lists and undermine an otherwise long key.

Readability and Device Compatibility

Keep the no-confusing-characters option on when guests will type the key or when you will enter it on a TV, console, or smart display. Removing O, 0, I, l, and 1 eliminates the most common transcription mistakes.

Leave symbols off if your network includes older printers, cameras, or smart plugs. Some of those devices mishandle punctuation in keys, and the failure looks like a hardware fault rather than a password problem. Compensate by adding a few more characters instead.

Group in 4s makes a long key much easier to read aloud or write on a card for visitors. The hyphens are part of the key, so they must be typed too.

Guest Networks and Sharing

Enable your router's guest network and give it its own generated key. Guests get internet access without reaching your computers, storage, or smart home controls.

Share the guest key by QR code where your router supports it. Modern phones join by camera, which removes typing errors entirely.

Change the guest key whenever you want a clean slate. Because no household device uses it, nothing of yours needs reconnecting.

Need passwords for the accounts behind that network? Use the Strong Password Generator for logins and the Memorable Password Generator for the ones you type from memory.