Changing a Wi-Fi password usually starts with one of three things: the password has circulated too widely, there is a suspicion someone is piggybacking, or the password the technician set on installation day has never been changed.
The process itself takes only a few minutes. What trips people up is one misunderstanding at the very start.
There are two passwords, and they are different
This is the single most common source of confusion.
| Wi-Fi password | Admin password | |
|---|---|---|
| Used for | Connecting devices | Opening the settings page |
| Entered on | Phones, laptops, TVs | A browser, at the router's IP address |
| Known by | Every resident and guest | Ideally only you |
| If changed | Every device disconnects | Nothing disconnects |
The two should not match. If you hand the Wi-Fi password to guests and it happens to be the same as the admin password, anyone who has ever connected can get into the router's settings.
Opening the router settings page
This page is not on the internet, it lives inside your own home network, reached through the router's IP address. Make sure your device is connected to the Wi-Fi you intend to change.
How to find the address:
- Android: Settings → Wi-Fi → tap the active network → look for the Gateway line.
- iPhone: Settings → Wi-Fi → the information icon → the Router line.
- Windows: open Command Prompt, type
ipconfig, look for Default Gateway. - macOS: System Settings → Network → Details → TCP/IP → Router.
The number is usually 192.168.1.1 or 192.168.0.1. Type it into the browser's address bar, not the search box, some browsers treat it as a search term and take you to Google instead. Local addresses are explained in the guide to local IPs and DHCP.
If asked for a username and password. Try the ones printed on the sticker on the router's body. For a router supplied with an internet subscription, the technician sometimes uses special credentials that are not on the sticker, contact the provider if the sticker combination is refused.
The menu is named differently on each brand
What you are looking for is always the same: the wireless settings and the password field. Only the terminology differs.
| Brand | Menu path | Field name |
|---|---|---|
| TP-Link | Wireless → Wireless Security | Password / PSK Password |
| ZTE | Network → WLAN → Security | WPA Passphrase |
| Huawei | WLAN → WLAN Basic Settings | WPA PreSharedKey |
| Asus | Wireless → General | WPA Pre-Shared Key |
| Tenda | Wireless Settings → Wi-Fi Name & Password | Wi-Fi Password |
| D-Link | Settings → Wireless | Pre-Shared Key |
If your router broadcasts 2.4 GHz and 5 GHz under different names, each has its own password field. Change both, and use the same password so devices do not get confused moving between them. Both bands are discussed in the guide to the difference between 2.4 GHz and 5 GHz.
Check the encryption type while you are there
Near the password field there is usually a security mode option. While the page is open, make sure its value is right.
| Option | Notes |
|---|---|
| WPA3-Personal | Best, if every device supports it |
| WPA2/WPA3 mixed | The safest choice for a home with older devices |
| WPA2-PSK (AES) | Still adequate |
| WPA/WPA2 mixed | Drop it where possible |
| WEP or no password | Do not use, breakable in minutes |
Older devices such as cheap security cameras sometimes do not support WPA3 yet. WPA2/WPA3 mixed mode accommodates both without compromising the newer ones.
Choosing a password that is strong but still memorable
Length matters more than complexity. An eight-character password full of symbols often ends up stuck to the fridge, while a long string of words is both easier to remember and harder to guess.
- At least twelve characters; longer is better.
- A combination of several random words works well, four unrelated words, say.
- Avoid the business name, address, dates of birth, or phone numbers.
- Do not reuse a password from another account.
- Avoid leading and trailing spaces, some devices treat them differently.
What happens once you press save
The router restarts its wireless radio for a few seconds, and every device disconnects: including the one you are using at the time.
What needs reconnecting, and gets forgotten:
- Security cameras, smart doorbells, and sensors
- Wireless printers
- Smart TVs and streaming devices
- Smart plugs and bulbs
- Connected washing machines, air conditioners, or fridges
- A second router, if you use one as an access point
Screenless devices usually need re-entering through their own apps, and some have to be set up from scratch. Where to place devices like these is discussed in the guide to smart device security.
If you use two routers. A second router acting as an access point stores its own Wi-Fi password. Change it there too, identically, or the network will split. The steps are in the guide to setting up two routers on one network.
Two things worth doing at the same time
While the settings page is open, these two steps add almost no time but give considerably more protection.
Change the admin password too
If it is still the default such as admin or password, change it now. Lists of each brand's default combinations circulate openly online.
Switch on the guest network
Then you never need to hand out the main password to guests, and never need to change it again because too many people know it. How to do it is in the guide to separating a guest network.
Changing the password disconnects anyone piggybacking, but it does not close the way in. If that suspicion is what prompted you, check who is connected and close the other gaps too, covered in the guide to spotting a compromised Wi-Fi network and the guide to securing a home router.
Frequently asked questions
What is the difference between the Wi-Fi password and the router admin password?
The Wi-Fi password is what devices use to join the network. The admin password opens the router's settings page. They are different and should not match. Many people change one and then wonder why the other did not change.
Will every device disconnect after the password changes?
Yes, all of them. Each device needs the new password entered individually, including screenless ones such as security cameras, printers, and smart plugs. Set aside time and a list of devices before changing it.
How long should a Wi-Fi password be?
At least twelve characters. Length matters more than a mix of symbols: a string of four memorable words is generally stronger and more practical than eight random characters that end up written on paper.
