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Use a short cable first close by the router. If you can get on and connect out to the web, with the cable, then you know at least the hard wire port capable of working and the laptop setup correctly to get out to the web. That give you a baseline to start and you can use the wired connection to download stuff that you need. Then you need to check the capability of the wireless card on the laptop. Can it do WEP, WPA, WPA2, etc. Next question is...How is the router setup? With ATTT. I know the one by me can do WPA2 or below. If the router setup for WPA2, and the laptop can't do WPA2, that is probably why it doesn't work. So that when decision time come. Drop the router security to accommodate the old pc, upgrade the old pc, leave wired only, etc.
The MAC address thing that was mentioned is if the router was setup to only 'allow' certain mac addresses. The att router makes this a PITA to setup, but it is possible in expert mode.
The MAC address thing that was mentioned is if the router was setup to only 'allow' certain mac addresses. The att router makes this a PITA to setup, but it is possible in expert mode.
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