How a guest Wi-Fi QR code works
In many cafés, the most repeated question at the counter is the Wi-Fi password. A Wi-Fi code answers it on paper: it holds the network name, password and security type in a short format, such as WIFI:T:WPA;S:Cafe-Guest;P:espresso-2026;;, and the phone camera turns that into a “Join network” prompt. Guests type nothing, so there are no mistakes with capital letters or a zero that looks like an O.
Set up a separate guest network before making the code, if your router or access points support one. The password sits in the code in readable form, and anyone who photographs a table tent can read it. A guest network keeps the card terminal, the office computer and the security cameras on a network guests cannot reach.
The code is static, so the password is fixed in it. If you change the guest password every month or after each rental stay, print new codes at the same time. Hotel networks with a sign-in or terms page, called a captive portal, still show that page after the phone connects; the code joins the network but does not complete the sign-in.
Where it helps
- Table tents in a café or restaurant, so guests connect while they wait for their order.
- A card in each hotel room or in the key card sleeve, next to checkout time and breakfast hours.
- A framed code inside the front door of a vacation rental or in the welcome folder, for guests who arrive late when the host is not around.
- A coworking desk, waiting room or salon chair, where visitors stay long enough to want a connection.
Tips before you print
- Print sheet / PDF makes an A4 sign with a “Connect to Wi-Fi” headline and the network name, so people who cannot scan still know which network to pick. You can add a subline such as “Ask staff for help”.
- Type the network name exactly as it is broadcast, including capital letters and suffixes such as _5G.
- When you rotate the password, replace every printed code the same day. A stale code still shows the join prompt but fails to connect, which looks like a broken network to guests.
- Test the printed code on an iPhone and an Android phone from where guests actually sit, under your real lighting.