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MacBook cannot connect to tested Internet via Airport or Ethernet Cable

3438 Views 7 Replies Latest reply: Sep 11, 2010 6:34 PM by hepcat72 RSS
julay Level 1 Level 1 (0 points)
Currently Being Moderated
Aug 27, 2010 2:21 PM
Hello, everyone.

I have an MacBook running 10.6.4 with a 2.13 GHz Intel Core Duo and 4 GB RAM. Although the other laptop in the house can connect fine to the Internet (thus this post), the MacBook stopped being able to access it (wireless or directly from the modem via Ethernet cable, at work or at home) after recent updates were made this morning.

Network preferences shows green light for "Airport", "Airport Settings", "Network Settings", and "ISP". Red lights show up for "Internet" and "Server".


Updates were:

iTunes 9.2.1
Safari 5.0.1
Security Update 2010-005 1.0
Snow Leopard Update 1.0
Digital Camera Raw Compatibility Update 3.3

Solutions attempted:

-Network Preferences Diagnostics and Assistant tools
-Verify Disk (everything OK)
-Repair Disk Permissions (three times)
-Restart computer (multiple times)
-Turn Airport card off then on
-Restart modem and routers, one by one in daisy chain order (and then restarted computer)
-Tried different browsers
-Tried to connect at work and at home
-Tried connecting directly to modem via Ethernet cable in addition to wireless at work and at home.

I am comfortable working in Terminal, if that's what it will take.

Thanks!
MacBook Pro 2.16Ghz Core 2 Duo, Mac OS X (10.4.11)
  • angus turner Level 1 Level 1 (25 points)
    Can you ping your router/modem from your mac?
    'ping -c 10 IPHERE' from terminal with IPHERE being the ip address of the router/modem
  • angus turner Level 1 Level 1 (25 points)
    In network prefs. have you got any proxies enabled?
    Can you ping your other laptop from your macbook?
    Can you access the routers or the modems admin page?
  • angus turner Level 1 Level 1 (25 points)
    Ah, I see. No problem and thanks for the star
  • hepcat72 Level 1 Level 1 (0 points)
    OK, well, let me pick up where he left off. I'm pretty sure I have the same exact problem, though I'm running 10.5.8 and I don't know the number of the security update I performed yesterday. I cannot connect to the internet via any web browser. I cannot connect to the apple software update server. Nor can I connect to my time capsule's backup volume. I cannot connect via either airport or ethernet cable (connected to either the modem or the time capsule). However, I can ssh into other computers on my network and I can see their desktops via "Chicken of the VNC". I tried everything that the original poster tried except:

    -Network Preferences Diagnostics and Assistant tools
    -Tried to connect at work and at home

    I just booted off the install CD and am typing this on another computer as it tries to see if there's enough space to perform a system restore via time capsule. I sincerely hope there's enough space, however I doubt there is.

    I assume that the security update I performed yesterday is what mucked things up. I think the only other update I checked was Safari. I'd selected to ignore the iTunes 10 update.

    Why can't I connect to the internet? Anyone have any ideas?

    Thanks,
    Rob
    G4, Mac OS X (10.5.8), Recent Security update
  • hepcat72 Level 1 Level 1 (0 points)
    Well, I spent all day doing a restore from backup, but it didn't work. I still cannot connect to the internet via either ethernet cable or airport. Weirdly enough, I'm posting this via a VNC connection with another computer I have in the house (using "Screen Sharing"). I had to type in the DCHP address manually to do it since it doesn't list my other network computers in the left pane of the finder window. Can someone give me some suggestions as to what to do? I've run out of ideas. Are there some prefs I can trash or something?

    Rob
    G4

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