Simple answers to common Wi-Fi questions
Type your problem in your own words below. Every answer says what to check, what to leave alone, and when it's time to call someone for help.
6 answers found · last checked 17 August 2026
Who is this unknown device on my Wi‑Fi?
Identify it using manufacturer, hostname, MAC and activity; phones may use private/random MAC addresses. Pause—not permanently block—while confirming with household members.
Security & accessWhy is my own phone shown as a new device every time?
Private/randomised MAC addressing can make the same phone appear with different identifiers, especially per SSID or after privacy-setting changes.
Security & accessWhy is a device connected but paused?
Paused devices can remain associated to Wi‑Fi while internet access is blocked by a profile or manual control. Resume only with authorised account-holder approval.
Security & accessWhy does a guest device not see my printer or Sonos?
Guest networks are normally isolated for safety, so local discovery and device-to-device access may be blocked.
Security & accessHas someone hacked my Wi‑Fi because it is slow?
Slow Wi‑Fi is more often coverage, interference or traffic. Check unknown devices and security alerts, change credentials if compromise is credible, and update equipment.
Security & accessShould I share my main Wi‑Fi password with visitors?
Use a guest network where available; it limits access to trusted local devices. Use a strong unique main password.