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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?
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!
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!
Thanks! This worked for me also!
This appears to only be a partial solution. When I restart my computer, I lose my internet connection again and have to toggle the Firewall off and on to fix this issue.
Jaysun,
Are you actually losing your L2 wireless link to your router, or is it that you have link up (full WiFi bars), its just that you cannot get an IP or even if you have an IP Address, you cannot browse the Internet or local network without doing a firewall off/on?
My computer is able to link to the router without any issues but it is unable to connect to the internet, either via wifi or ethernet. Usually it says that I have a manually assigned IP, but sometimes I can't obtain an IP at all.
This does not sound like a wireless issue, rather something higher up the stack.
Please turn on DHCP logging by opening a terminal and doing:
sudo ipconfig setverbose 1
Please reproduce the issue where the firewall is on (after reboot) and you cannot get an IP address.
Then in a terminal please run the following commands (one at a time):
sudo ipfw -a l
sudo sysctl -a | grep ip.fw.
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getblockall
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --listapps
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getallowsigned
Now fix the problem with your workaround of turning the firewall off and then on and repeat the above commands. Please post the output of the commands to this thread along with the log /var/log/com.appleIPConfiguration.bootp
Also, you can try removing the firewall plist and rebooting to see if that corrects the issue?
Open a terminal and do:
sudo mv /Library/Preferences/com.apple.alf.plist com.apple.alf.plist.orig
This will preserve your original alf plist for the firewall.
Now reboot your Mac and the plist will get created from scratch. See if that corrects the issue.
I deleted the firewall plist and I'm still having the same issue.
Firewall on, no internet connectivity:
sudo ipfw -a l
65535 0 0 allow ip from any to any
sudo sysctl -a | grep ip.fw.
net.inet.ip.fw.enable: 1
net.inet.ip.fw.autoinc_step: 100
net.inet.ip.fw.one_pass: 0
net.inet.ip.fw.debug: 0
net.inet.ip.fw.verbose: 0
net.inet.ip.fw.verbose_limit: 0
net.inet.ip.fw.dyn_buckets: 256
net.inet.ip.fw.curr_dyn_buckets: 256
net.inet.ip.fw.dyn_count: 0
net.inet.ip.fw.dyn_max: 4096
net.inet.ip.fw.static_count: 1
net.inet.ip.fw.dyn_ack_lifetime: 300
net.inet.ip.fw.dyn_syn_lifetime: 20
net.inet.ip.fw.dyn_fin_lifetime: 1
net.inet.ip.fw.dyn_rst_lifetime: 1
net.inet.ip.fw.dyn_udp_lifetime: 10
net.inet.ip.fw.dyn_short_lifetime: 5
net.inet.ip.fw.dyn_keepalive: 1
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, ALF kGlobalStateKey does not return a CFNumber
Firewall is enabled. (State = 1)
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getblockall
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, ALF kGlobalStateKey does not return a CFNumber
Block all DISABLED!
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --listapps
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, kApplicationKey does not return a CFArray
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getallowsigned
Automatically allow signed software ENABLED
After the problem has been fixed by turning the Firewall off and on:
sudo ipfw -a l
65535 0 0 allow ip from any to any
sudo sysctl -a | grep ip.fw.
net.inet.ip.fw.enable: 1
net.inet.ip.fw.autoinc_step: 100
net.inet.ip.fw.one_pass: 0
net.inet.ip.fw.debug: 0
net.inet.ip.fw.verbose: 2
net.inet.ip.fw.verbose_limit: 0
net.inet.ip.fw.dyn_buckets: 256
net.inet.ip.fw.curr_dyn_buckets: 256
net.inet.ip.fw.dyn_count: 0
net.inet.ip.fw.dyn_max: 4096
net.inet.ip.fw.static_count: 1
net.inet.ip.fw.dyn_ack_lifetime: 300
net.inet.ip.fw.dyn_syn_lifetime: 20
net.inet.ip.fw.dyn_fin_lifetime: 1
net.inet.ip.fw.dyn_rst_lifetime: 1
net.inet.ip.fw.dyn_udp_lifetime: 10
net.inet.ip.fw.dyn_short_lifetime: 5
net.inet.ip.fw.dyn_keepalive: 1
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, ALF kGlobalStateKey does not return a CFNumber
Firewall is enabled. (State = 1)
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getblockall
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, ALF kGlobalStateKey does not return a CFNumber
Block all DISABLED!
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --listapps
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, kApplicationKey does not return a CFArray
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getallowsigned
Automatically allow signed software ENABLED
Ick. This does not look good:
ALF: Error, IsExpectedCFType(variableInQuestion) variable == NULL!
ALF: Error, ALF kGlobalStateKey does not return a CFNumber
See, I can run the same commands and I am not seeing that evil error:
wow:SystemConfiguration hello$ sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
Password:
Firewall is enabled. (State = 1)
wow:SystemConfiguration hello$ sudo /usr/libexec/ApplicationFirewall/socketfilterfw --getblockall
Block all DISABLED!
wow:SystemConfiguration hello$ sudo /usr/libexec/ApplicationFirewall/socketfilterfw --listapps
wow:SystemConfiguration hello$
Let me poke around a bit and see what I can find out from my Apple contact.
Actually, I can confirm that on restart both Ethernet or WiFi Fail to get an IP address.
At the moment I need to toggle the Firewall on and off on restart to get my network connectivity back....bit of a fail solution I am afriad!
Jaysun,
Can you please open a terminal and do:
cd /System/Library/SystemConfiguration/
then
ls -la
and post the output?
I want to see if ApplicationFirewall.bundle exists in that directory.
I'm having the exact same problem. Manually turning the Firewall on fixes it, but it's a manual and temporary solution, at best. As someone who uses her MacBook in several locations throughout the day, this is a big fail., I
FYI, I went to the Apple Store earlier this week to try to get a fix for these ongoing Wi-Fi problems. The Genius told me that I'm the only person who's having this trouble. When I said there are hundreds of pages of complaints in the Apple Support Forums, he snarkily told me that there are hundreds of people who post messages about Big Foot on the internet, too. It was all I could do not to shove my "big foot" in his big mouth. And no, after deleting my system configuration folder with much fanfare, he couldn't fix the problem, either.
It would be swell if Apple would take this problem seriously!
Thanks for your help with this!
total 0
drwxr-xr-x 17 root wheel 578 Aug 19 18:57 .
drwxr-xr-x 73 root wheel 2482 Aug 19 18:56 ..
drwxr-xr-x 3 root wheel 102 Jun 23 2011 Apple80211Monitor.bundle
drwxr-xr-x 3 root wheel 102 Aug 9 22:18 ApplicationFirewall.bundle
drwxr-xr-x 3 root wheel 102 Jun 19 2011 Bluetooth.bundle
drwxr-xr-x 3 root wheel 102 Jun 24 2011 EAPOLController.bundle
drwxr-xr-x 3 root wheel 102 Jun 23 2011 IPConfiguration.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 IPMonitor.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 InterfaceNamer.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 KernelEventMonitor.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 LinkConfiguration.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 Logger.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 NetworkIdentification.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 PPPController.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 PreferencesMonitor.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 PrinterNotifications.bundle
drwxr-xr-x 3 root wheel 102 Jun 18 2011 wwanConfig.bundle
I'm having the same issue on two Macs. Restarting firewall appears to fix it, but has to be done each time my Mac is restarted.
Out of interest, did everyone else suffering this problem have 'Litte Snitch' installed? This firewall app seems to be removed by this update, and I think the problem may be caused by the method Little Snitch used replace the standard firewall.
I didn't have Little Snitch installed.
10.7.3 Breaks Network Connectivity iMac?
