Keep in mind that you can tick
Save Pinged IP for your IP ranges to force Lansweeper to generate asset pages for all pingable assets. No data will be available unless you enable one of the following supported protocols however, preferably SNMP: FTP, HTTP, HTTPS, JetDirect, MOB (Managed Object Browser), SIP, SMTP, SNMP (SNMPv1, SNMPv2 or SNMPv3), SSH, Telnet or WMI.