So I'm guessing that the Airport Router is doing your DHCP. Did you check the settings in it? It sounds like it's not issuing a IP address to your laptop. Could just need to restart the Router. And check the settings and make sure all old leases are released. Or something very odd has happened and it just won't respond to your systems MAC address anymore. You might want to try a different router at home. Had something similar happen on my last laptop. My home WAP would no longer let my laptop automatically connect. I had to join the network every time it came out of sleep. The laptop worked fine everywhere else, just not at home. And all my other systems never had a problem with the home WiFi. I did firmware updates on the router and a system reinstall on the laptop. No joy. New Router/WAP and problem gone.
Something else you can try, but I don't know how well it will work. You can try and go into the laptops System Preferences and make a new service on the same ethernet port and set it a static IP address. But that can be problematic when you take the laptop somewhere else if you network range at home is the same range as work or some other place.
Good luck.
Jay
On Sep 20, 2012, at 12:39 AM, John Moore wrote:
> Last night my circa 2009 july MBP os 10.6.8 would not access the internet at home.. After playing around I found that for some reason using the ethernet connection I've always used wasn't working. If I unplugged the ethernet the airport wifi would connect and work. I figured I had a problem with my ethernet port. I played with network utility and I couldn't ping a local device, my tek scope without the wifi on. I figured I had a hardware failure. I went into work expecting my ethernet cable to be of no use but with airport off I was able to plug into the ethernet network and it worked fine accessing the internet. I thought that meant the ethernet port was working fine. After all I had airport shut off and my internet was working through the
> ethernet cable. I come home tonight and once again the hardwire connection to ethernet does not work. I swapped cables and ports but nothing. I hooked my daughter's mac book up to the ethernet cable and shut her airport off and it worked fine accessing the internet over the same cable I normally use for my MBP. If the cable is good why would my MBP work on the ethernet connection at work but not at home. Nothing has changed on my Airport base station at home. At least I've done nothing to change it. Any suggestions? Also I can access the ethernet connected printer that is connected to the Airport Extreme. Everything is hooked to the Airport Extreme Router and it is feed by my dsl modem through ethernet. All other computers access the internet fine. WTF?
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> John Moore
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> Barking Trout Productions
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> bigfish@pacbell.net
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