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10.7.3 Breaks Network Connectivity iMac?

Hey guys,


My work computer updated to 10.7.3 in my 2010 iMac.


After restart, all network connectivity is down. It will not pick up an IP address via WiFi or Ethernet.


I cannot even connect to my Time Capsule to do a restore.


Any ideas?

Posted on Feb 1, 2012 5:17 PM

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Question marked as Top-ranking reply

Posted on Feb 1, 2012 11:24 PM

Hey all,


For anyone who is interested, turns out my Firewall was off.


I am not sure why is was off, further more I am not sure why my Ethernet / WiFi would not pick up an IP address with the Firewall turned off.


Anyway, turning the Firewall back on seemed to fix things.


System Settings > Security & Privacy > Firewall


Might help anyone who has a similar issue!

41 replies

Feb 9, 2012 8:52 PM in response to jeremyhu

I'm fairly certain it wasn't a beta version. I was running the beta version of Lion in early 2011 (through the Apple Developer Program Beta), but I know I've formatted and reinstalled Lion a few times since the official app store version came out in Nov 2011 (the luxury of having a dual internal Intel SSD drives).

Is there a way to tell if I'm running the beta version... shouldn't it say beta somewhere??? This is what I see in the about:


MacBook Pro

13-inch, Mid 2009


Processor 2.53 GHz Intel Core 2 Duo

Memory 8 GB 1067 MHz DDR3

Graphics NVIDIA GeForce 9400M 256 MB

Software Mac OS X Lion 10.7.3 (11D50b)

Feb 20, 2012 8:39 AM in response to mattmate

So glad I have found this too!

Just started a huge campaign at uni, DESPERATE for internet. Even paid for a tethering package on my phone, to find that I was getting the 169... IP address from that too!!


Not cool, Apple.


Had a phone call from Apple who couldnt fix it and advised me to go get it looked at in the Apple Store tomorrow - not sure if I should bother now after hearing your experiences... doesn't seem that Apple are recognising this as an issue!


I toggled the Firewall to 'on'... which sorted my connection instantly... although I'm pretty sure my firewall was off in the first place - as it pesters me with authorisation every 5 minutes... but seems to be working at present.


Hopefully an update will be released soon enough to fix this!


David

10.7.3 Breaks Network Connectivity iMac?

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