I have an old DI-524 D-Link wireless router. I use WEP security and also filter using mac address. I am unable to add 2 new computers to work with the router wirelessly while the same computers work without issue with the same router and a wired connection. I have entered the mac addresses of both wireless and Ethernet adapters to the filters.
Other devices - my 3rd computer, phone, home theater, Wii console, all work wirelessly with the DI-524.
Anybody know what the issue might be ? I have tried customer support but the router is out of warranty

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