The easiest way is to buy WLAN adapters for both your laptop and your PC, creating a peer-to-peer wireless connection
between them. Enable Internet connection sharing and voila! your laptop will have access to the Internet. The steps involved:
1) Plug a USB wireless adapter (~$50) into your PC.
2) Insert a PCMCIA wireless card (~$50) into your laptop.
3) Configure both wireless adapters for peer-to-peer (ad hoc) connections. Both must use the same SSID, channel, and (if you enable WEP) encryption keys. Give each connection a static IP address: for example, assign 192.168.0.1 to the PC and assign 192.168.0.2 to the laptop. Set the laptop connection's default gateway to 192.168.0.1 (the PC's address). You should be able to ping the PC from the laptop.
4) Configure Internet connection sharing on the PC. For example, on Windows XP, open the satelite connection's properties panel and check "allow other users to connect through this computer's Internet connection." Follow the wizard if you're not sure how to set this up. When finished, you should be able to ping the Internet from the laptop.
Dig deeper on Wireless LAN Implementation
Related Q&A from Lisa Phifer, Wireless Networking Expert
Wireless expert Lisa A. Phifer explains to what extent WEP cracking remains a worrisome issue. It all depends on your company's WLAN security policy.continue reading
Wireless expert, Lisa Phifer explains that it may not be worth enhancing Wi-Fi ad hoc mode since Wi-Fi Direct is a better alternative for enabling ...continue reading
Wireless expert Lisa Phifer responds to a question regarding a Mi-Fi and Android smartphone mobile hotspot comparison. She provides an in depth ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.