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Airport connects but not receiving an IP

2197 Views 12 Replies Latest reply: Jun 2, 2008 4:01 PM by gregmote RSS
bikuta Calculating status...
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Apr 3, 2008 3:08 PM
Hi guys,

Recently I haven't been able to use the internet using airport (wireless), it seems to connect fine, i.e., the airport bars turn black. However I don't get an IP, not even a local one.

I know there's nothing wrong with the router because other macs connect to it just fine.

Anyone have any ideas on what's wrong?
PowerBook G4, Mac OS X (10.5.2)
  • piersons Calculating status...
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    Apr 4, 2008 12:38 AM (in response to bikuta)
    I am having this same problem. The DHCP won't renew a lease and I keep getting a 'self-assigned IP address' that is not related to the IP addresses on my home network. This happens with Airport and ethernet. Sees the network, other computers on the network all work flawlessly, but the Powerbook isn't getting an IP address for my local network. Any ideas?
    Powerbook g4 15", Mac OS X (10.5.2)
  • jskodack Calculating status...
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    Apr 11, 2008 8:33 AM (in response to piersons)
    I am having the same exact issue. I can solve this issue sometimes by just shutting down the system and unplugging it from the AC adapter for an hour or so to let it cool down. However, I would like a solution to fix this.
    15 in Powerbook G4, Mac OS X (10.5.2)
  • jskodack Level 1 Level 1 (5 points)
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    Apr 11, 2008 9:44 AM (in response to bikuta)
    Ok, I just tried about everything (reseting PMU, PRAM, NVRAM, cycle through safe boot) and nothing worked. As a random check, I turned off my firewall and low and behold airport can negotiate IP addresses again. yay....
    15 in Powerbook G4, Mac OS X (10.5.2)
  • piersons Level 1 Level 1 (0 points)
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    Apr 12, 2008 11:44 PM (in response to jskodack)
    Ahhh...you cracked it! The firewall switch worked for me, too. Good times. Thanks!
  • piersons Level 1 Level 1 (0 points)
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    Apr 13, 2008 10:44 AM (in response to bikuta)
    After you do that, you then need to go back to the network settings and click the button to renew the DHCP lease, assuming your DHCP is set to automatic and not manual.

    Hope that helps!
  • piersons Level 1 Level 1 (0 points)
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    Apr 14, 2008 10:16 PM (in response to bikuta)
    I would definitely try restarting if you haven't already, and maybe turning Airport off and on..Otherwise I'm back to being stumped. Mine's working swell now. Sorry to hear yours isn't...
  • lganso Level 1 Level 1 (5 points)
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    Apr 23, 2008 9:04 PM (in response to bikuta)
    I've just been on this forum looking for hints on how to fix the very same problem re: subject...tried everything everyone suggested...no go...finally in desperation I logged onto the modem using another computer and reset my encryption code...same setting...all I did is delete it and then put it back in...everything works...hope this helps...
  • Christopher Meinck Calculating status...
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    May 12, 2008 3:41 PM (in response to bikuta)
    Just curious, is everyone here running Leopard. I never had these problems until Leopard. Now, I've got the same problem using my home network (FIOS) and recently while on vacation. I called AppleCare and they were zero help. They blamed it on the router and said they didn't support the Verizon ActionTec router. Fast forward a few weeks and I'm having the same issue while on vacation. I've seen solutions here mentioning a change in encryption. This network has no password, so that fix doesn't work. I deleted the connection, turned off Airport and then rebooted. I enabled Airport and then it found the connection. Right now, it seems like it's hit or miss with connections. Not very good for me considering I rely on my internet connection for business. Not happy.
    Dual Core 2.0 PowerMac | PowerBook G4, Mac OS X (10.4.3)
  • gregmote Calculating status...
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    Jun 2, 2008 4:01 PM (in response to jskodack)
    I had the same issue, and it took forever to narrow it down to being a DHCP issue. Why is the firewall blocking DHCP, that seems rather silly. At least I am back on the internet. Now to see what happens when I turn the firewall back on...
    PowerBook G4, Mac OS X (10.5.3), It's Still Shiny!™

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