Guest networks and Wi-Fi passwords

Everyone who has your Wi-Fi password has your network. A guest network keeps visitors, contractors and cheap gadgets off the computers that hold your files. It takes five minutes in most routers.

What does a guest network do?

It gives visitors internet without letting their devices see yours. A friend's phone on your guest network cannot reach your printer, your file shares or your cameras. The same applies to a smart plug that you do not fully trust. The FTC's guide to securing home Wi-Fi tells people to set up a guest network with a separate name and password, which limits who has the main password and keeps guest devices off the main network (FTC, read 10/15/26). CISA gives the same advice (CISA, read 10/15/26).

How do you set one up?

Steps vary by maker. The help center has articles for common routers, such as ASUS, TP-Link Archer and eero.

1. Open your router's app or its settings page. The address and the sign-in are on the router's label or in its manual.
2. Find a section called Guest Network or Guest Wi-Fi and turn it on.
3. Give it a plain name that does not reveal your name or address.
4. Pick a password, and choose WPA3 or WPA2 if it asks for the type.
5. Leave the setting that keeps guests from seeing other devices turned on, if there is one.

What makes a good Wi-Fi password?

Length beats cleverness. A passphrase of four or five unrelated words is easier to type on a TV remote than a jumble of symbols and is harder to guess. Do not use your name, your address, the router's brand or the default one printed on the label. Write the password on a card in a drawer, not on the router. When someone should no longer have it, such as a former tenant or a contractor who stayed a while, change it and enter the new one on your own devices. The passwords guide covers storing them.

What is the second password?

The router has a login for its settings, separate from the Wi-Fi password. The FTC points out that a hacker with the admin login could change your Wi-Fi password, so it advises changing both and giving the router a unique admin name and password (FTC, read 10/15/26). If the router still uses the factory login, change it now. Log out of the settings when you finish.

What other router settings matter?

The FTC advises using WPA3 Personal or WPA2 Personal encryption, keeping the router's software updated, and turning off remote management, WPS and UPnP, which can weaken security (FTC, read 10/15/26). If your internet company supplied the router, ask whether it sends updates by itself. High Desert's line connects to a router you own or choose, and the service agreement leaves the router and other equipment inside the home to the customer, so these settings are yours to manage. The secure your home network guide goes further.

How often should you change the passwords?

There is no fixed schedule that suits everyone. Change the Wi-Fi password when someone you no longer trust has it, when a device is lost or sold, and after a contractor or short-term renter leaves. Change the router login when you first set the router up and again if you suspect it was shared. After a change, write the new Wi-Fi password on a card and re-join each device. Some gadgets, such as printers and cameras, must be set up again from scratch, so keep a list of them before you start. A password manager helps with the list; see two-step verification for the accounts that matter most.

Who should be on the guest network?

Keep computers, phones and the printer you use for work on the main network. If you need a person to look at the setup, call 775-575-9593 any day 9 to 5; they answer questions but do not log into your router.

• Visitors and house sitters.
• Smart plugs, bulbs and speakers that only need the internet.
• Cameras and doorbells, if they still work from there.
• Tenants in a guest house, unless they have their own service.