WLAN INFO diagnoses problems in wireless networks. The free auditor's conveniently without installation, so is suitable for portable use on USB sticks and similar portable storage devices. Thanks to this operation, WLAN INFO makes, for example, useful for field staff, to help customers in troubleshooting the WLAN. Among the data obtained, the freeware one among other information about the encryption method used in the scanned network used. In addition, WLAN INFO checks the transmission strength and frees its value in dBm. In this way, the study may provide valuable information for more optimal placement of the router.