Download a Wi-Fi analyzer for Windows

Observe from where the connection is a problem

A signal measured near the router does not always mirror that of another room. Distance, obstacles and the position of the computer all bear on the observation. Move the same machine around several spots and record the context: time, location and current activity. You will then be able to spot a variation without mistaking it for a change of adapter. A signal value is not a complete measure of the throughput you have; network load and device capabilities also come into play. The aim is to prepare a change you can verify from the same spots, using a task representative of how you work.

Read access point characteristics

inSSIDer shows, among other things, the channel, its width, the Wi-Fi generation, the maximum advertised speed and the security mode. This information describes the equipment configuration. The advertised speed does not necessarily match the speed of a download. Several access points can also broadcast the same network name. To diagnose a signal change, then, pin down the equipment involved and its location. The list helps bring together information otherwise scattered across several interfaces. It does not stand in for the administrative access needed to change a setting. Make sure you know which router or access point you intend to modify.

Recognize the limits of Wi-Fi measurement

A Wi-Fi scanner does not directly detect every emission in a radio band. Some interference comes from devices that do not communicate over Wi-Fi. Oscium separates this scanning from spectrum analysis, which requires suitable equipment. An environment showing few networks can therefore still cause trouble. Begin by reviewing the available data, then frame a specific hypothesis. Change only one setting at a time so you can interpret the result. A single observation does not prove a channel will stay lightly used all day, because neighboring networks and their uses can shift.

Verify the account and the extra functions

inSSIDer offers free use with a free Oscium account. The ordinary discovery functions rely on the PC's Wi-Fi adapter. MetaGeek Plus adds advanced possibilities, including packet analysis with compatible hardware and network snapshots. Check these conditions before settling on a function glimpsed in a tutorial. The browser can then open the administration interface of a router that provides one. To equip a new machine for this common use, see useful applications for preparing a Windows workstation. Wireless scanning and changing settings remain two separate steps, each with its own controls and access conditions.

Frequently asked questions