Guest Wi‑Fi security for offices
How to offer visitor internet without exposing printers, servers, or staff devices on the same LAN.
Why guest Wi‑Fi must be separate
Visitors, contractors, and IoT on the same network as finance PCs is a common breach path. Guest SSIDs should land on an isolated VLAN or subnet with internet-only access — no routes to internal servers or printers.
Simple architecture
Business-grade access points support multiple SSIDs mapped to VLANs. Staff SSID uses WPA3 or WPA2-Enterprise (802.1X) where possible; guest SSID uses a daily passphrase or captive portal with acceptable-use terms.
Bandwidth and abuse
Rate-limit guest traffic so Teams calls on the staff VLAN stay stable. Log and block peer-to-peer if your ISP complains. Review connected clients occasionally — forgotten guest passwords get shared.
Melbourne office practicalities
Reception areas, warehouses, and client meeting rooms all need coverage without bleeding into the street. A quick site survey beats buying one oversized consumer router and hoping.
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