Wifi causes MacBook to crash

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Wifi causes MacBook to crash

Hi!

I got myself a Time Capsule (1TB) in summer and since then my MacBookPro (13'' Hardwareversion 5.5) keeps crashing (the desktop picture freezes and I have do to a hard power reset). First I believed it was a problem with my MacBook since I changed it's harddrive. But I realized that the problems just appear when I'm at home (= in the WiFi hosted by my Time Capsule) and I even formated the disk and reinstalled OS X and all my Apps (without a Time Machine Backup).

In the past week I did some "research": I found out that the Mac just freezes if it does some heavy network activity (over WiFi from the Time Capsule... cable works perfekt) like making a Time Machine backup or simply copying big files to another computer.
After than I turned the Time Capsule's WiFi off, attached another Router to it, which now hosts the WiFi (The TC is still doing DHCP and routing stuff). Using the other Router everything went smooth in the past two weeks.

Further when Using the Wifi of the TC my MacBook randomly lost the network connection. To start it again I had to "Turn Airport Off" and On again on the Mac.

Any Idea what the problem could be?

MacBookPro 13'' - 5.5, Mac OS X (10.6.5)

Posted on Dec 4, 2010 12:59 AM

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Answer 1

Dec 4, 2010 1:33 PM in response to fismac

Welcome to Apple's discussion groups.

It might help if you reset the connection settings on your Mac. Here are some things to try to do that:

1) Use the AirPort menu bar item to turn AirPort off, then on again.

2) In the Network panel of System Preferences delete the AirPort item from the left column, then add it back.

3) In the same panel as (2), define a new location and see if you can make that work.

4) In the folder /Library/Preferences ( not <yourhomefolder>/Library/Preferences), move the folder SystemConfiguration onto the Desktop, then restart your computer. See if you can now make your AirPort connection work.

They may not help, but they'll only take a couple of minutes to try. Before you try these, note all your network settings, because the latter steps will destroy them.

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