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Disabling MAC filtering on the router worked. &nbsp;He's connected.<br />
Am I now vulnerable?
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Not really .. MAC filtering is very good as it ONLY allows specific PCs to connect.<br />
However it is a simple matter of adding MAC address of the MacBook to the DLink and then re-enabling MAC filtering<br />
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To get the MAC address of the MacBook Airport card .. &nbsp;read the following instructions REMEMBER get the AIRPORT MAC address not the Ethernet one!!<br />
<a href="http://www.simplehelp.net/2007/08/14/how-to-determine-your-ip-or-mac-address-in-os-x/" rel="ugc">http://www.simplehelp.net/2007/08/14/how-to-determine-your-ip-or-mac-address-in-os-x/</a><br />

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Home network with Dlink DIR-655 router. &nbsp;No problem accessing wired or wireless with PCs and PC laptops. &nbsp;When my son brings his Macbook home, he is unable to connect. Message is that Connection failed. &nbsp;He has no problem connecting with his router at his home. &nbsp;Any suggestions? &nbsp;I've turned encryption on and off, I've created new locations on his Macbook. No help 
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Home network with Dlink DIR-655 router.  No problem accessing wired or wireless with PCs and PC laptops.  When my son brings his Macbook home, he is unable to connect. Message is that Connection failed.  He has no problem connecting with his router at his home.  Any suggestions?  I've turned encryption on and off, I've created new locations on his Macbook. No help 

Disabling MAC filtering on the router worked.  He&#39;s connected.
Am I now vulnerable?

Not really .. MAC filtering is very good as it ONLY allows specific PCs to connect.
However it is a simple matter of adding MAC address of the MacBook to the DLink and then re-enabling MAC filtering

To get the MAC address of the MacBook Airport card ..  read the following instructions REMEMBER get the AIRPORT MAC address not the Ethernet one!!
http://www.simplehelp.net/2007/08/14/how-to-determine-your-ip-or-mac-address-in-os-x/


Macbook - DLink DIR 655 Router- Can&#39;t Connect

Home network with Dlink DIR-655 router.  No problem accessing wired or wireless with PCs and PC laptops.  When my son brings his Macbook home, he is unable to connect. Message is that Connection failed.  He has no problem connecting with his router at his home.  Any suggestions?  I&#39;ve turned encryption on and off, I&#39;ve created new locations on his Macbook. No help 

Macbook - DLink DIR 655 Router- Can't Connect

All of Apple's hardware is produced solely by Apple Inc., who determines internal systems, designs, and prices. Apple buys certain components wholesale from third-party manufacturers. The current Mac product family uses Intel x86-64 processors. All Mac models ship with at least 1 GB RAM as standard. Current Mac computers use ATI Radeon or nVidia GeForce graphics cards and include a dual-function DVD and CD burner, called the SuperDrive. Current Apple hardware includes the iPad, iPhone, iMac, Mac Pro, Macbook, iPod and Apple TV. Discontinued hardware includes the Apple I, Apple II, and the Apple III, the Lisa, the Newton, the Quadra, Performa, Centris, Macintosh II and LC series, the Power Macintosh, iBooks and the MacBook.

Apple Hardware

Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure. The key hardware components of a wireless computer network include adapters, routers and access points, antennas and repeaters.