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#1 2017-05-15 12:42:49

GenericNumber
Member
Registered: 2017-01-25
Posts: 9

Network debugging: Connection stops working after some time.

Hi, I' d like to get some help debugging an issue I'm having with my machine atm. After some time connected to a network via wifi my connection stops working, a sample ping gives me the following ouput:

(192.168.1.172 is the IP of my machine)

ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 192.168.1.172 icmp_seq=7 Destination Host Unreachable
From 192.168.1.172 icmp_seq=8 Destination Host Unreachable

I' m fairly certain it's not a DNS problem (I'm directly querying an IP in the above output)

I'd like to provide more info but I'm at a loss of what to do or where to look I've tried following the tips posted here but I haven't been successful so far.

Any tips or stuff that I could try out?

Thanks.

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#2 2017-05-15 12:59:49

tom.ty89
Member
Registered: 2012-11-15
Posts: 897

Re: Network debugging: Connection stops working after some time.

What's the output of:

systemctl list-unit-files | grep enabled

Make sure you don't have multiple network agent enabled.

Also check the journal with:

journalctl -b

If you know what you are using for network, you can add a -u switch, _for example_:

journalctl -b -u systemd-networkd

EDIT: what's the output of

ip a
ip r

anyway?

Last edited by tom.ty89 (2017-05-15 13:01:31)

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#3 2017-05-15 16:13:31

GenericNumber
Member
Registered: 2017-01-25
Posts: 9

Re: Network debugging: Connection stops working after some time.

Here it goes:

 ~ systemctl list-unit-files | grep enabled
autovt@.service                                                        enabled  
dbus-org.wicd.daemon.service                                           enabled  
getty@.service                                                         enabled  
mongodb.service                                                        enabled  
systemd-timesyncd.service                                              enabled  
tlp-sleep.service                                                      enabled  
tlp.service                                                            enabled  
unbound.service                                                        enabled  
wicd.service                                                           enabled  
remote-fs.target                                                       enabled  

As far as I can tell only wicd is doing network stuff

~  journalctl -b -u wicd.service
-- Logs begin at Wed 2017-01-25 01:01:32 CET, end at Mon 2017-05-15 18:08:11 CEST. --
May 15 14:11:32 haller systemd[1]: Starting Wicd a wireless and wired network manager for Linux...
May 15 14:11:32 haller systemd[1]: Started Wicd a wireless and wired network manager for Linux.
May 15 14:11:39 haller wicd[293]: dhcpcd not running
May 15 14:11:39 haller wicd[293]: Failed to connect to non-global ctrl_ifname: wlp58s0  error: No such file or directory
May 15 14:11:39 haller wicd[293]: dhcpcd not running
May 15 14:11:39 haller wicd[293]: Failed to connect to non-global ctrl_ifname: wlp58s0  error: No such file or directory
May 15 14:11:39 haller wicd[293]: Error for wireless request "Set Bit Rate" (8B20) :
May 15 14:11:39 haller wicd[293]:     SET failed on device %s ; No such device.
May 15 14:11:45 haller dhcpcd[1032]: DUID 00:01:00:01:20:1a:a7:f5:9c:b6:d0:d0:d9:31
May 15 14:11:45 haller dhcpcd[1032]: wlp58s0: IAID f8:07:23:e9
May 15 14:11:46 haller dhcpcd[1032]: wlp58s0: soliciting a DHCP lease
May 15 14:11:46 haller dhcpcd[1032]: wlp58s0: soliciting an IPv6 router
May 15 14:11:49 haller dhcpcd[1032]: wlp58s0: offered 192.168.1.172 from 192.168.1.25 `ecosystem.home.cisco.com'
May 15 14:11:49 haller dhcpcd[1032]: wlp58s0: probing address 192.168.1.172/24
May 15 14:11:54 haller dhcpcd[1032]: wlp58s0: leased 192.168.1.172 for 86400 seconds
May 15 14:11:54 haller dhcpcd[1032]: wlp58s0: adding route to 192.168.1.0/24
May 15 14:11:54 haller dhcpcd[1032]: wlp58s0: adding default route via 192.168.1.25
May 15 14:11:58 haller dhcpcd[1256]: wlp58s0: no IPv6 Routers available
May 15 14:13:24 haller dhcpcd[1256]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:13:24 haller dhcpcd[1256]: wlp58s0: requesting DHCPv6 information
May 15 14:15:58 haller dhcpcd[1256]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:15:58 haller dhcpcd[1256]: wlp58s0: requesting DHCPv6 information
May 15 14:18:14 haller dhcpcd[1256]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:18:14 haller dhcpcd[1256]: wlp58s0: requesting DHCPv6 information
May 15 14:21:06 haller dhcpcd[1256]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:21:06 haller dhcpcd[1256]: wlp58s0: requesting DHCPv6 information
May 15 14:23:29 haller dhcpcd[1256]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:23:29 haller dhcpcd[1256]: wlp58s0: requesting DHCPv6 information
May 15 14:25:30 haller dhcpcd[3617]: sending signal ARLM to pid 1256
May 15 14:25:30 haller dhcpcd[3617]: waiting for pid 1256 to exit
May 15 14:25:30 haller dhcpcd[1256]: received SIGALRM, releasing
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: removing interface
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: releasing lease of 192.168.1.172
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: deleting default route via 192.168.1.25
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: deleting route to 192.168.1.0/24
May 15 14:25:31 haller wicd[293]: dhcpcd not running
May 15 14:25:31 haller wicd[293]: Failed to connect to non-global ctrl_ifname: wlp58s0  error: No such file or directory
May 15 14:25:31 haller wicd[293]: Error for wireless request "Set Bit Rate" (8B20) :
May 15 14:25:31 haller wicd[293]:     SET failed on device %s ; No such device.
May 15 14:25:34 haller dhcpcd[3701]: DUID 00:01:00:01:20:1a:a7:f5:9c:b6:d0:d0:d9:31
May 15 14:25:34 haller dhcpcd[3701]: wlp58s0: IAID f8:07:23:e9
May 15 14:25:34 haller dhcpcd[3701]: wlp58s0: adding address fe80::e4c5:b0a0:4648:4511
May 15 14:25:35 haller dhcpcd[3701]: wlp58s0: soliciting an IPv6 router
May 15 14:25:35 haller dhcpcd[3701]: wlp58s0: soliciting a DHCP lease
May 15 14:25:35 haller dhcpcd[3701]: wlp58s0: offered 192.168.1.172 from 192.168.1.25 `ecosystem.home.cisco.com'
May 15 14:25:35 haller dhcpcd[3701]: wlp58s0: probing address 192.168.1.172/24
May 15 14:25:41 haller dhcpcd[3701]: wlp58s0: leased 192.168.1.172 for 86400 seconds
May 15 14:25:41 haller dhcpcd[3701]: wlp58s0: adding route to 192.168.1.0/24
May 15 14:25:41 haller dhcpcd[3701]: wlp58s0: adding default route via 192.168.1.25
May 15 14:25:47 haller dhcpcd[3937]: wlp58s0: no IPv6 Routers available
May 15 14:26:17 haller dhcpcd[3937]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:26:17 haller dhcpcd[3937]: wlp58s0: requesting DHCPv6 information
May 15 14:27:09 haller dhcpcd[5088]: sending signal ARLM to pid 3937
May 15 14:27:09 haller dhcpcd[5088]: waiting for pid 3937 to exit
May 15 14:27:09 haller dhcpcd[3937]: received SIGALRM, releasing
May 15 14:27:09 haller dhcpcd[3937]: wlp58s0: removing interface
May 15 14:27:09 haller dhcpcd[3937]: wlp58s0: deleting address fe80::e4c5:b0a0:4648:4511
May 15 14:27:09 haller dhcpcd[3937]: wlp58s0: releasing lease of 192.168.1.172
May 15 14:27:09 haller dhcpcd[3937]: wlp58s0: deleting default route via 192.168.1.25
May 15 14:27:09 haller dhcpcd[3937]: wlp58s0: deleting route to 192.168.1.0/24
May 15 14:27:09 haller wicd[293]: dhcpcd not running
May 15 14:27:20 haller wicd[293]: Error for wireless request "Set Bit Rate" (8B20) :
May 15 14:27:20 haller wicd[293]:     SET failed on device %s ; No such device.
May 15 14:27:23 haller dhcpcd[5301]: DUID 00:01:00:01:20:1a:a7:f5:9c:b6:d0:d0:d9:31
May 15 14:27:23 haller dhcpcd[5301]: wlp58s0: IAID f8:07:23:e9
May 15 14:27:23 haller dhcpcd[5301]: wlp58s0: adding address fe80::d951:9dc9:a989:3d80
May 15 14:27:24 haller dhcpcd[5301]: wlp58s0: soliciting a DHCP lease
May 15 14:27:24 haller dhcpcd[5301]: wlp58s0: soliciting an IPv6 router
May 15 14:27:24 haller dhcpcd[5301]: wlp58s0: offered 192.168.1.172 from 192.168.1.25 `ecosystem.home.cisco.com'
May 15 14:27:24 haller dhcpcd[5301]: wlp58s0: probing address 192.168.1.172/24
May 15 14:27:29 haller dhcpcd[5301]: wlp58s0: leased 192.168.1.172 for 86400 seconds
May 15 14:27:29 haller dhcpcd[5301]: wlp58s0: adding route to 192.168.1.0/24
May 15 14:27:29 haller dhcpcd[5301]: wlp58s0: adding default route via 192.168.1.25
May 15 14:27:37 haller dhcpcd[5436]: wlp58s0: no IPv6 Routers available
May 15 14:28:45 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:28:45 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:33:54 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:33:54 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:36:04 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:36:04 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:38:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:38:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:41:31 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:41:31 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:43:46 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:43:46 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:46:16 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:46:16 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:49:13 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:49:13 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:51:48 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:51:48 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:54:09 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:54:09 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:56:20 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:56:20 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 14:58:36 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 14:58:36 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:01:17 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:01:17 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:03:26 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:03:26 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:05:28 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:05:28 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:08:25 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:08:25 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:11:14 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:11:14 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:13:57 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:13:57 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:16:52 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:16:52 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:18:53 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:18:54 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:21:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:21:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:24:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:24:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:27:27 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:27:27 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:30:23 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:30:23 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:32:49 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:05:28 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:05:28 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:08:25 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:08:25 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:11:14 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:11:14 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:13:57 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:13:57 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:16:52 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:16:52 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:18:53 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:18:54 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:21:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:21:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:24:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:24:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:27:27 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:27:27 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:30:23 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:30:23 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:32:49 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:32:49 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:35:15 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:35:15 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:37:28 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:37:28 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:39:45 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:39:45 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:42:35 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:42:35 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:44:35 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:44:35 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: carrier lost
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: deleting address fe80::d951:9dc9:a989:3d80
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: deleting default route via 192.168.1.25
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: deleting route to 192.168.1.0/24
May 15 18:04:30 haller dhcpcd[4025]: sending signal ARLM to pid 5436
May 15 18:04:30 haller dhcpcd[4025]: waiting for pid 5436 to exit
May 15 18:04:30 haller dhcpcd[5436]: received SIGALRM, releasing
May 15 18:04:30 haller dhcpcd[5436]: wlp58s0: removing interface
...skipping...
May 15 15:05:28 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:05:28 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:08:25 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:08:25 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:11:14 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:11:14 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:13:57 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:13:57 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:16:52 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:16:52 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:18:53 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:18:54 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:21:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:21:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:24:34 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:24:34 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:27:27 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:27:27 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:30:23 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:30:23 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:32:49 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:32:49 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:35:15 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:35:15 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:37:28 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:37:28 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:39:45 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:39:45 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:42:35 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:42:35 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 15:44:35 haller dhcpcd[5436]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 15:44:35 haller dhcpcd[5436]: wlp58s0: requesting DHCPv6 information
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: carrier lost
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: deleting address fe80::d951:9dc9:a989:3d80
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: deleting default route via 192.168.1.25
May 15 18:04:28 haller dhcpcd[5436]: wlp58s0: deleting route to 192.168.1.0/24
May 15 18:04:30 haller dhcpcd[4025]: sending signal ARLM to pid 5436
May 15 18:04:30 haller dhcpcd[4025]: waiting for pid 5436 to exit
May 15 18:04:30 haller dhcpcd[5436]: received SIGALRM, releasing
May 15 18:04:30 haller dhcpcd[5436]: wlp58s0: removing interface
May 15 18:04:40 haller wicd[293]: dhcpcd not running
May 15 18:04:40 haller wicd[293]: Failed to connect to non-global ctrl_ifname: wlp58s0  error: No such file or directory
May 15 18:04:40 haller wicd[293]: dhcpcd not running
May 15 18:04:40 haller wicd[293]: Failed to connect to non-global ctrl_ifname: wlp58s0  error: No such file or directory
May 15 18:04:40 haller wicd[293]: Error for wireless request "Set Bit Rate" (8B20) :
May 15 18:04:40 haller wicd[293]:     SET failed on device %s ; No such device.
May 15 18:04:43 haller dhcpcd[4200]: DUID 00:01:00:01:20:1a:a7:f5:9c:b6:d0:d0:d9:31
May 15 18:04:43 haller dhcpcd[4200]: wlp58s0: IAID f8:07:23:e9
May 15 18:04:43 haller dhcpcd[4200]: wlp58s0: adding address fe80::e4c5:b0a0:4648:4511
May 15 18:04:44 haller dhcpcd[4200]: wlp58s0: soliciting a DHCP lease
May 15 18:04:44 haller dhcpcd[4200]: wlp58s0: offered 192.168.1.172 from 192.168.1.25 `ecosystem.home.cisco.com'
May 15 18:04:44 haller dhcpcd[4200]: wlp58s0: probing address 192.168.1.172/24
May 15 18:04:44 haller dhcpcd[4200]: wlp58s0: soliciting an IPv6 router
May 15 18:04:48 haller dhcpcd[4200]: wlp58s0: leased 192.168.1.172 for 86400 seconds
May 15 18:04:48 haller dhcpcd[4200]: wlp58s0: adding route to 192.168.1.0/24
May 15 18:04:48 haller dhcpcd[4200]: wlp58s0: adding default route via 192.168.1.25
May 15 18:04:57 haller dhcpcd[4257]: wlp58s0: no IPv6 Routers available
May 15 18:05:23 haller dhcpcd[4257]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 18:05:23 haller dhcpcd[4257]: wlp58s0: requesting DHCPv6 information
May 15 18:08:11 haller dhcpcd[4257]: wlp58s0: Router Advertisement from fe80::1691:82ff:fe7a:2c95
May 15 18:08:11 haller dhcpcd[4257]: wlp58s0: requesting DHCPv6 information
lines 125-164/164 (END)
 ~ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: wlp58s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:28:f8:07:23:e9 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.172/24 brd 192.168.1.255 scope global wlp58s0
       valid_lft forever preferred_lft forever
    inet6 fe80::e4c5:b0a0:4648:4511/64 scope link 
       valid_lft forever preferred_lft forever
 ~ ip r
default via 192.168.1.25 dev wlp58s0 src 192.168.1.172 metric 302 
192.168.1.0/24 dev wlp58s0 proto kernel scope link src 192.168.1.172 metric 302 

Thanks for all the commands, I' ll keep them noted down.

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#4 2017-05-15 16:23:33

tom.ty89
Member
Registered: 2012-11-15
Posts: 897

Re: Network debugging: Connection stops working after some time.

It seems like dhcpcd keeps killing itself after attempts of requesting DHCPv6 info? I am not sure.

You may want to keep a terminal open with `journalctl -f` running. See if these show up right after you lost the connection:

May 15 14:25:30 haller dhcpcd[3617]: sending signal ARLM to pid 1256
May 15 14:25:30 haller dhcpcd[3617]: waiting for pid 1256 to exit
May 15 14:25:30 haller dhcpcd[1256]: received SIGALRM, releasing
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: removing interface
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: releasing lease of 192.168.1.172
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: deleting default route via 192.168.1.25
May 15 14:25:30 haller dhcpcd[1256]: wlp58s0: deleting route to 192.168.1.0/24
May 15 14:25:31 haller wicd[293]: dhcpcd not running

Also tlp can be doing something inappropriate...

Last edited by tom.ty89 (2017-05-15 16:24:16)

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#5 2017-05-16 08:52:18

GenericNumber
Member
Registered: 2017-01-25
Posts: 9

Re: Network debugging: Connection stops working after some time.

I've tried disabling IPV6 and also switching to dhclient on wicd to see if that solves the issue, I'll report back when I've tested enough the connection. I' ll keep an eye on this thread just in case any other suggestions arise.

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