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I'm having issues with my wireless network connection on my macbook pro 10.8.2 I thought it might be airport/hardware issues but it's not.
At the moment I'm using a wireless usb adapter (Realtek RTL8187B, pulled from my tv) and I'm having connectivity issues with that as well.
The only message that shows up in console is
Jan 22 19:40:02 localhost configd[17]: network changed: v4(en2-:192.168.178.11) v6(en2-:fe80::2665:11ff:fea3:d11c) DNS- Proxy- SMB
Jan 22 19:40:08 localhost configd[17]: network changed: v4(en2+:192.168.178.11) DNS* Proxy+ SMB
Jan 22 19:40:11 localhost configd[17]: network changed: v4(en2!:192.168.178.11) v6(en2+:fe80::2665:11ff:fea3:d11c) DNS+ Proxy SMB
Jan 22 19:40:12 macbookpro-002241397ac5.fritz.box configd[17]: setting hostname to "macbookpro-002241397ac5.fritz.box"
And then the connection is disconnected. The only way to get the wireless connection back is to turn wireless off and back on (this is for the usb wireless adapter) in the wireless network utility app provided by RealTek.
To get connectivity back for Airport only a reboot will work.
I'm really getting desperate here. I can't even leave my mac to download stuff in peace, because I'm never sure it will finish the download.
This is what I've tried so far.
I've used DTrace scripts provided with mac osx (mainly opensnoop) to try and find out what exactly configd is doing. I haven't gotten much wiser from it.
What I've found out is that whenever my wireless connection craps out the following files are accessed by configd.
2013 Jan 22 19:40:02 0 17 configd -1 /etc/resolver
2013 Jan 22 19:40:02 0 17 configd 6 /etc/hostconfig
2013 Jan 22 19:40:02 0 17 configd 6 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:02 0 17 configd 6 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:06 0 17 configd 6 /dev/bpf0
2013 Jan 22 19:40:07 0 17 configd 22 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:07 0 17 configd 22 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:07 0 17 configd 22 /Library/Preferences/SystemConfiguration/com.apple.smb.server.plist
2013 Jan 22 19:40:07 0 17 configd 22 /Library/Preferences/SystemConfiguration/com.apple.smb.server.plist-lock
2013 Jan 22 19:40:07 0 17 configd 24 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:07 0 17 configd 24 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:07 0 17 configd 24 /Library/Preferences/SystemConfiguration/com.apple.smb.server.plist
2013 Jan 22 19:40:07 0 17 configd 24 /var/root/.CFUserTextEncoding
2013 Jan 22 19:40:08 0 17 configd 22 /dev/null
2013 Jan 22 19:40:08 0 17 configd 22 /etc/hostconfig
2013 Jan 22 19:40:08 0 17 configd 6 /dev/bpf0
2013 Jan 22 19:40:08 0 17 configd -1 /etc/resolver
2013 Jan 22 19:40:08 0 17 configd 22 /etc/hosts
2013 Jan 22 19:40:08 0 17 configd 22 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:08 0 17 configd 22 /Library/Preferences/SystemConfiguration/preferences.plist
2013 Jan 22 19:40:10 0 17 configd 22 /dev/null
2013 Jan 22 19:40:11 0 17 configd 19 /var/run/resolv.conf-
2013 Jan 22 19:40:11 0 17 configd -1 /etc/resolver
2013 Jan 22 19:40:11 0 17 configd 19 /etc/hostconfig
I also did a trace with execsnoop, to find out which processes where started by configd. Not sure if it will be of help to anyone, but I'll include it anyways.
The following processes are started in all cases (ignore the timestamps, don't have a log from the 19:40 time point)
2013 Jan 22 03:15:00 0 7539 1 sh
2013 Jan 22 03:15:00 0 7541 7539 mktemp
2013 Jan 22 03:15:00 0 7540 7539 hostname
2013 Jan 22 03:15:01 0 7549 7546 date
2013 Jan 22 03:15:01 0 7550 7546 sh
2013 Jan 22 03:15:00 0 7548 7547 cat
2013 Jan 22 03:15:01 0 7553 7551 sed
2013 Jan 22 03:15:01 0 7556 7554 sed
2013 Jan 22 03:15:01 0 7562 7558 sed
2013 Jan 22 03:15:01 0 7559 7557 tee
2013 Jan 22 03:15:01 0 7563 7560 find
2013 Jan 22 03:15:01 0 7561 7557 wc
2013 Jan 22 03:15:01 0 7564 7560 find
2013 Jan 22 03:15:02 0 7565 7546 cat
2013 Jan 22 03:15:02 0 7566 7546 cp
2013 Jan 22 03:15:02 0 7567 7546 sh
2013 Jan 22 03:15:02 0 7568 7567 msgs
2013 Jan 22 03:15:02 0 7569 7546 cat
2013 Jan 22 03:15:02 0 7570 7546 cp
2013 Jan 22 03:15:02 0 7571 7546 sh
2013 Jan 22 03:15:02 0 7573 7572 find
2013 Jan 22 03:15:02 0 7574 7572 tee
2013 Jan 22 03:15:02 0 7575 7572 wc
2013 Jan 22 03:15:02 0 7576 7546 cat
2013 Jan 22 03:15:03 0 7577 7546 cp
2013 Jan 22 03:15:03 0 7578 7546 sh
2013 Jan 22 03:15:03 0 7579 7578 find
2013 Jan 22 03:15:03 0 7580 7546 cat
2013 Jan 22 03:15:03 0 7581 7546 cp
2013 Jan 22 03:15:03 0 7582 7546 sh
2013 Jan 22 03:15:03 0 7583 7546 cp
2013 Jan 22 03:15:03 0 7584 7546 sh
2013 Jan 22 03:15:03 0 7585 7584 df
2013 Jan 22 03:15:04 0 7586 7546 cat
2013 Jan 22 03:15:04 0 7587 7546 cp
2013 Jan 22 03:15:04 0 7588 7546 sh
2013 Jan 22 03:15:04 501 7589 696 mdworker
2013 Jan 22 03:15:04 0 7590 7588 netstat
Alex
Did you find out what is causing this problem? I'm getting similar message on iOS:
"configd[24] <Notice>: network changed: v4(pdp_ip0:X.X.X.X) DNS* Proxy""
– surlac – 2016-04-11T22:33:51.857