New logic board and network connection problems

My late 2007 MBP just had a new logic board installed. I have home and work wireless networks that are configured to connect automatically. This always worked flawlessly in the past. My MBP would find the network, connect and all was well. Since I've had the new logic board I'm having issues. The wireless network will be detected but an IP address is not assigned so I can't get on the network or internet. Both my home and work networks were set to assign a specific IP address to my computer. The MAC address detected by the router is correct, at least according to System Preferences.
The only way I can connect is to disable the firewall (Allow all incoming connections). When I do this I connect immediately to the network and everything works as normal. I can even turn the firewall back on and everything will be fine, that is until I leave work and turn the computer on at home. Then I have to go through this again. And then again when I go to work in the morning. I've tried deleting my router profile and resetting from scratch, deleting the network profiles in System Preferences and re-detecting. I don't know what else to try. It's an annoying problem.
Any suggestions?
Thanks.
Kevin

I think I have it fixed. One of the solutions I read about had to do with the 10.5.7 upgrade. I have always installed the smaller upgrades, not the larger "combo" upgrades. One tip suggested installing the full combo upgrade because, among other things, it re-creates two specific files that control how the computer interacts with the network. I installed the combo upgrade last Friday and connected without difficulty to the network at my office this morning. If I connect just as easily when I get home tonight I will consider the problem solved.
Cheers!
Kevin

Similar Messages

  • New logic board, and new display, but now completely dead.

    Hi guys,
    I've got an iBook G3, running 10.3.9.
    In December 2006, the logic board failed, so I bought a MacBook, because I didn't have time to be offline waiting weeks for Apple to replace the iBook's logic board.
    After much badgering, Apple reluctantly replaced the iBook's logic board under the extended warranty program.
    While the iBook was with the Apple repair store, they replaced the display for new as well, even though I didn't ask them to, and even though I wasn't charged for it.
    I presume that was because the store discovered that the display was duff enough to be replaced under another extended warranty program.
    When I got the "repaired" unit home, with a brand new logic board, and a brand new display, I turned it on, and it seemed to be working fine, so I turned it off, and continued to use my MacBook.
    A few weeks ago, the second logic board on my MacBook failed (another long horror story entirely), so I began using the iBook for the first time since it had been "repaired" some six months earlier.
    Almost immediately, the iBook began exhibiting a major problem, specifically that I'd be typing away, and suddenly the display would go black.
    I could just about see the icons and documents on the screen, but the unit was unusable.
    So I pulled restarts, full shutdowns, disk utility, zapped the PRAM, etc, all to no avail.
    It seemed to be an intermittent problem.
    For example, sometimes, from a cold start, the unit would work for two or three hours until the display went black.
    Other times, I'd pull a cold start, and it would go straight to the black display.
    By chance, I discovered that if I gave the iBook a shake, the display would come back on.
    But then it would go black after a second or two.
    And then with another shake, it would come back on for a second or two.
    And then it would go black after a second or two.
    And then with another shake, it would come back on, sometimes for a couple of hours at a time.
    So I figured that it must be a cable which, during the installation of the logic board, and/or the new display, wasn't seated correctly by the technician.
    I phoned Apple, and told them about it.
    They said that because I had reported the issue beyond 90 days since the logic board had been replaced, it was no longer Apple's problem.
    I explained to Apple that I hadn't used the iBook for six months, because I had a MacBook.
    After much badgering, Apple has agreed to replace the logic board if it's faulty.
    However, Apple has refused to replace the NEW display, even if that's also faulty.
    Apple is also insisting that I have to pay all the labor charges.
    Meanwhile, I've noticed that the iBook is now incredibly hot.
    I mean, the MacBook is infamous for running hot, but this "repaired" iBook makes my MacBook feel like a block of ice by comparison.
    I don't remember the iBook running so extremely hot before the "repair."
    Which has made me notice that during the last few weeks, I've never heard the iBook's fan come on.
    I presume that an iBook has a fan ?
    Please confirm.
    Therefore, another loose cable ?
    Today, the display went black again, as usual.
    So I gave the iBook a shake.
    But this time, nothing happened.
    No display.
    No fan.
    No hard drive spinning.
    Just silent and dead.
    What do you reckon, guys ?
    Duff logic board ?
    And/or duff display ?
    And/or duff fan ?
    And/or duff cabling by the technician ?
    As far as I'm concerned, I don't see why I should have to pay for yet another repair, to correct hardware and/or workmanship which was so bad that after only three weeks of ACTUAL use since the "repair", the unit is now completely dead.
    All opinions and advice gratefully received.
    With thanks and best wishes,
    Michael
    London, England

    Hi S,
    Many thanks for your helpful and swift response.
    I agree with you regarding the likelihood that these problems would have surfaced immediately during normal usage, regardless of how much or little time had passed since the repair.
    As advised, I will inform Apple Customer Relations UK about the new developments.
    Indeed, when I resubmit the iBook, I'll include a print-out of this discussion.
    I agree with you about the fan.
    Prior to the failure of the first logic board, I ran that iBook for YEARS, without noticing any heat issue.
    Indeed, if there had been such incredible heat, then I'd have searched these discussion boards, and reported it to Apple HQ.
    Therefore, the astonishing heat is definitely a new development since the "repair."
    Consequently, I take on board your comments about the lack of a working fan since the "repair", which I shall also mention to Apple HQ.
    As for running the Apple Hardware Test, the unit is completely dead.
    The power cable is green, but the unit is now completely silent and black.
    I also note your suggestions regarding the cable which connects the display to the rest of the unit, which I shall also mention to Apple HQ.
    No repair sheet was ever given to me by the Apple Repair Centre (ARC).
    Indeed, no receipt was ever given to me when I delivered the unit to the ARC, nor was any paperwork ever given to me when I collected the unit from the ARC.
    However, Apple HQ can see on their screen that the logic board and display were both replaced for new by the ARC.
    What else was and wasn't done by the ARC is a mystery.
    I'll phone the ARC and ask for copies of any and all paperwork, so that I can submit it all to Apple HQ, which I note is your recommended option, rather than returning the unit to the ARC.
    However, the complicating factor is that with the exception of the logic board, it is my understanding that Apple is denying any liability on any part of the "repaired" unit, including the brand new display.
    If I understand Apple HQ correctly, they're now saying that all other hardware and labor costs will be mine.
    I'm sure I could buy a WORKING second-hand iBook G3 for the same price as a repair, if not cheaper.
    Therefore, perhaps I should return the unit to the ARC, and give them the opportunity to correct their previous workmanship, at their OWN cost.
    Because as far as I'm concerned, the ARC had two customers during the repair: Apple and the end-user, as evidenced by the fact that the ARC has invoiced its first customer Apple for workmanship which was clearly not up to Apple's own standards, and the ARC has then delivered the unit to its second customer, the end-user.
    In addition, regardless of Apple's 90 day warranty on repaired hardware, UK law includes the Sale of Goods Act 1979, and other relevant legislation: http://www.dti.gov.uk/consumers/fact-sheets/page38311.html
    Furthermore, if the ARC is completely unhelpful, I could jump all over them, by writing to Apple HQ, with cc's to the UK editions of MacWorld, MacFormat, and MacUser magazines.
    As advised, if the unit goes to Apple HQ, I will suggest that the unit is looked at carefully during disassembly, to see if errors were made during the ARC "repair."
    I'm always polite when on the phone to Apple, because I love the company so much.
    Indeed, even though during the last twelve months, I've been having very bad luck with the iBook, as well as with a MacBook which has exhibited so many problems that Apple has now agreed to replace old for new, I still love my Mac.
    And joy, sweet joy, I've just seen on the TNT courier's tracker website, that my replacement MacBook, built by Apple in Singapore, then flown to Arnhem in Germany, then flown to Northampton UK, then delivered to Heathrow UK, left the Heathrow depot 30 minutes ago, for delivery to the customer.
    And the sun is shining.
    Thank you again for all your kind and wise advice.
    With best wishes,
    Michael
    London, England

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    final cut express
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  • Apple installed a new logic board and now iTunes music is all gone and I cannot log into store or authorize my Mac

    I have an early  2011 i7 MacBook Pro running OSX 10.9.4. Earlier this week I had Geniuses at the Apple Store install a new logic board to replace a failed one. My hard drive was not touched. Anyway, when I got home and launched iTunes, I discovered that none of the tens of thousands of legally purchased songs in my iTunes library were listed, even though they actually still exist in my Music folder. Additionally, my attempts to login to the iTunes Store with my valid and correct and accurate and current Apple ID with the correct password, did not work. In fact,  no errors were generated. The logins simply erased my input after clicking SIGN IN and then the "Sign In" form came back empty.
    As a developer and 28+ year user of the Mac, I was a little stunned to say the least. The Apple Store logic board replacement process should take into account iTunes authentication problems when replacing failed logic boards, but this issue was not discussed at all, in any form during the repair intake process. So, I now have a 'fixed' MacBook Pro that will not acknowledge my thousands of legally purchased songs and will not let me log into the iTunes Store with my valid credentials or authorize or de-authorize my Mac.
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    Does anyone know a workaround to this Apple flaw that can correct their mistake and re-enable my Mac for using my thousands of legally purchased songs?
    Any feedback would be most appreciated!
    Thanks,
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    When a new logic board is installed, you'll need to reauthorize the Mac again. It's not the end of the world, however, if this step wasn't initially taken. See Authorize your computer using iTunes.
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    Open the Keychain Access in the /Applications/Utilities/ folder and create a new keychain, giving it the name login.
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    Hi I have an intel based Imac......serial #      QP******DAS.....early 2011 I beleive......I have been advised that I need to replace both the logicboard and the power supply as the mac fails to start.
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    <Edited By Host>

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    This problem baffled me. I kept getting the "ethernet cable unplugged" error after testing my cables good. Was abut to write it off as port gone bad when I found this thread.
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  • Mid 2009 applecare logic board and battery ADVICE

    returning mac OS and mac hardware buyer here.
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