These lights are very useful when troubleshooting. Different lights can tell you if the adapter is properly connected to your computer, if it can link to other adapters on the network and if there's network activity. Alternately, some adapters come with software that similarly monitor the status of your network. Whether you decide to go wired or wireless will be influenced by the layout of your home, your budget, plus the type of computers you own. Wired ethernet LANs are the least expensive option, offer the fastest transfer speeds and utilize a mature technology.
Wireless networks are still new so they're pricier and have the potential for more problems.
But the convenience of wireless will outweigh any drawbacks for many users. Sympatico-Lycos Inc. All Rights Reserved Sympatico is a trademark of Bell Canada, used under license.