Take print out of present settings for both desktop and laptop.Since both connect to Internet and you can surf. Only WIfi for laptop problem . see post No 9. Disable IPV6 in TCP/IP properties. ( we don't want more confusion !)1.169.254.86.173 Net Speed ISP Domain PRIVATE IP ADDRESS LANThis should not appear.2. Netbios over TCP/IP usually "default" see in TCP/Ip properties Advanced WINS. 3. subnet mask 255.255.255.0 standard.4. Enable DHCP in the modem give range 192.168.1.1 to 192.168.1.20. Para two In "Dialup"Wanminiport""Bridged" mode Follow the wiki page and try modem settings ONLY for desktop 1. with lanport/ethernet port Rj45 connection. 2. Check laptop same mode. ( If both OK with new modem/computer's settings)3. Now try WIKI page for WIFI connection.4. Will prefer an "AlwaysOn" instead of "Dialup" mode.