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My network connection completely died - "failed: 49 - Can't assign requested address"

The entire networking stack on my 2012 Retina MBP died just a few minutes ago, and I was only able to get it up and running by rebooting.


First no sites in Safari worked and then I noticed when using telnet that:

[stig@Hyperion:~]$ telnet www.allthingsd.com 80

Trying 192.0.65.213...

telnet: connect to address 192.0.65.213: Can't assign requested address

Trying 192.0.65.216...

telnet: connect to address 192.0.65.216: Can't assign requested address

telnet: Unable to connect to remote host


Strangely enough traceroute and ping worked.


In the system log there is no warning untill the network is down:


Nov 12 10:28:31 Hyperion.local mDNSResponder[62]: AppendDNSNameString: Illegal empty label in name ".weblamb.com"

Nov 12 10:28:31 Hyperion com.apple.launchd.peruser.501[164] (com.onible.iTunificationStartup[65065]): Exited with code: 1

Nov 12 10:28:31 Hyperion com.apple.launchd.peruser.501[164] (com.onible.iTunificationStartup): Throttling respawn: Will start in 10 seconds

Nov 12 10:28:33 Hyperion.local PluginProcess[65047]: CoreText performance note: Client called CTFontCreateWithName() using name "Arial" and got font with PostScript name "ArialMT". For best performance, only use PostScript names when calling this API.

Nov 12 10:28:33 Hyperion.local PluginProcess[65047]: CoreText performance note: Set a breakpoint on CTFontLogSuboptimalRequest to debug.

Nov 12 10:28:33 Hyperion.local PluginProcess[65047]: CoreText performance note: Client called CTFontCreateWithName() using name "Times Roman" and got font with PostScript name "Times-Roman". For best performance, only use PostScript names when calling this API.

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111635 connectx to 88.221.96.163#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111635 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111634 connectx to 88.221.96.163#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111634 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111637 connectx to 88.221.96.163#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111637 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111636 connectx to 88.221.96.163#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111636 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111639 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111639 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111638 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111638 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111642 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111642 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111640 connectx to 23.23.14.248#80 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111644 connectx to 192.237.224.183#80 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111644 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111646 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111646 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111645 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111645 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111647 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111647 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111648 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111648 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111640 connectx to 107.22.72.129#80 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111649 connectx to 173.194.32.62#443 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111649 failed to connect

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_destination_prepare_complete 111650 connectx to 184.86.224.214#80 failed: 49 - Can't assign requested address

Nov 12 10:28:34 Hyperion.local com.apple.WebKit.Networking[2157]: tcp_connection_handle_destination_prepare_complete 111650 failed to connect



I tried flushing the routes and using ifconfig to down/up the interfaces but nothing worked.


Has anybody seen anything like this?

MacBook Pro with Retina display, OS X Mavericks (10.9)

Posted on Nov 12, 2013 2:15 AM

Reply
158 replies

Jun 19, 2014 7:52 AM in response to Christoph Ewering1

It's happening there since 10.9.0 after 20-30 days.


The issue is still happening on 10.9.3.


% uptime

16:51 up 27 days, 20:59, 21 users, load averages: 0,42 0,45 0,71


% netstat -n | egrep '^(tcp|udp)' | awk '{print $NF}' | sort | uniq -c

49 *.*

4 CLOSE_WAIT

43 ESTABLISHED

100 FIN_WAIT_1

17 FIN_WAIT_2

1649 LAST_ACK


Only rebooting resolves the issues... for a few days...

Jul 28, 2014 8:16 PM in response to Daniel Luke

I got this symptom in 10.9.4 today after just a few hours of uptime. I believe the culprit was my VPN software. I put the MBP to sleep while on VPN, and awoke it when I got back home. Although I shut down the VPN software normally from its normal menu command, it left behind a whole bunch of improper ARP routes (as seen with netstat -r -n). To fix the issue I had to activate an advanced option in my VPN software that has it reset the adapter after it disconnects.

My network connection completely died - "failed: 49 - Can't assign requested address"

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