Currently Being ModeratedMay 21, 2012 1:00 PM (in response to Rasstarr)
Everyone I have found the fix for this problem in case anyone else comes across it. There seems to be a conflict with ipv6 on the network and this is causing the mac to lock up. The easy fix is to go in network preferences then either on your airport or ethernet settings click on advanced and then go to the tab tcp/ip. Here you turn the settings for ipv6 to off instead of automatically. If you airport is on and automatically connecting to the network it is locking up on turn off airport as soon as you boot your computer. Then you can go ahead make the changes and turn back on your airport.
The alternative fix which we will use as the ISP instead of having customers change settings on their computer, is to turn off ipv6 in the modem or router.
Hope this helps anyone that has run into the same issue as myself.
Currently Being ModeratedSep 28, 2012 1:10 AM (in response to Rasstarr)
I'd like to thank you for this (disabling ipv6) - worked perfectly (Macbook 3,1, OSX 10.5). Was seriously confused as to what it could be.
Conflict is with a DLink router, and freezing occurred on both Airport and ethernet.
Currently Being ModeratedOct 25, 2012 8:35 PM (in response to Rasstarr)
Thanks for confirming this issue. I recently was learning IPv6 and practicing to setup IPv6 over IPv4 tunneling. I happen to find my mac freeze sometime when I plugged in the cable. Finally I narrowed it down to my new setup of IPv6. I got IPv6 working but still it is annoying it might locks up my mac. I am running 10.6.
Currently Being ModeratedJan 16, 2014 4:38 AM (in response to Rasstarr)
Thank you from Russia! You saved plenty of my time. I changed my wireless modem to a new model and experienced this problem. Rebooted my iMac dozens of times. Thanks for posting the fix!!!
Currently Being ModeratedFeb 25, 2014 9:34 PM (in response to Rasstarr)
Brilliant! I spent the last week going crazy trying to fix the spinning beach ball but couldn't understand why it only happened when I was at home. I was drinking too much coffee in Starbucks just so I could get online without my computer freezing and the Local Apple shop must have thought I was stupid to keep taking my 'frozen' computer to them only to have it restart in the shop with no problem. Thank goodness I don't need to buy a new computer ...... yet!
Currently Being ModeratedMar 10, 2014 9:42 PM (in response to Rasstarr)
Thank you! You saved the day! We had a project that needed to be uploaded before a deadline. We had this exact problem and couldn't find the answer. Good on ya mate!