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Wireless encryption problems
Posted by clutch There are two components to a wireless connection: 1. The radio connection, where both of the adapters (Ad-Hoc or Infrastructure) can connect. This is when WEP/WPA is negotiated. 2. The network connection, where you have an IP and can be successfully routed beyond the next radio hop (be it a WAP with router as in your case, or Ad-Hoc with Internet Connection Sharing for others). So, where are you having your issues? Do you see the signal for the network card successfully binding to the WAP? If so, are you using DHCP from a server on the network and not getting an IP? The latter is a very typical issue, where certain adapters do not work well (or at all) with certain WAPs using encryption. If this occurs, the DHCP broadcast from a server on the network never gets forwarded to the client (or may never make it to the server in the first place) and the client is left stranded. You can tell if you are having this issue by simply using WEP/WPA, and then checking to see if the laptop is getting an IP. If it isn't, try manually assigning an IP to the device and see if it will connect. Remember, even if this works you might still have issues with connection stability later on. Try updating firmware on the WNICs and router to see if this addresses it. This was corrected for me a couple of times when I updated the firmware on a Linksys and Intermec WAP. |