Hello every once in a while I noticed my streaming stops and buffers on my clients.

I caught the logs and noticed this is what happens when it buffers;

 

Nov  1 22:20:47 kenny dhcpcd[1493]: eth0: carrier lost
Nov  1 22:20:47 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' NOCARRIER
Nov  1 22:20:47 kenny dhcpcd[1493]: eth0: deleting IP address 192.168.1.110/24
Nov  1 22:20:47 kenny avahi-daemon[5535]: Withdrawing address record for 192.168.1.110 on eth0.
Nov  1 22:20:47 kenny avahi-daemon[5535]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.110.
Nov  1 22:20:47 kenny avahi-daemon[5535]: Interface eth0.IPv4 no longer relevant for mDNS.
Nov  1 22:20:47 kenny dhcpcd[1493]: eth0: deleting route to 192.168.1.0/24
Nov  1 22:20:47 kenny dhcpcd[1493]: eth0: deleting default route via 192.168.1.1
Nov  1 22:20:47 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' EXPIRE
Nov  1 22:20:49 kenny ntpd[1540]: Deleting interface #68 eth0, 192.168.1.110#123, interface stats: received=139, sent=156, dropped=0, active_time=43824 secs
Nov  1 22:20:49 kenny ntpd[1540]: 198.245.51.213 local addr 192.168.1.110 -> <null>
Nov  1 22:20:49 kenny ntpd[1540]: 206.108.0.133 local addr 192.168.1.110 -> <null>
Nov  1 22:20:49 kenny ntpd[1540]: 206.108.0.131 local addr 192.168.1.110 -> <null>
Nov  1 22:20:50 kenny kernel: r8169 0000:03:00.0 eth0: link up
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: carrier acquired
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' CARRIER
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: delaying IPv4 for 0.7 seconds
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: using ClientID 01:00:1c:c0:cd:a1:da
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: reading lease `/var/lib/dhcpcd/dhcpcd-eth0.lease'
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: rebinding lease of 192.168.1.110
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: sending REQUEST (xid 0xed093767), next in 4.2 seconds
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: acknowledged 192.168.1.110 from 192.168.1.1
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: probing for 192.168.1.110
Nov  1 22:20:50 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (1 of 3), next in 1.7 seconds
Nov  1 22:20:52 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (2 of 3), next in 1.2 seconds
Nov  1 22:20:53 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (3 of 3), next in 2.0 seconds
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: leased 192.168.1.110 for 43200 seconds
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: renew in 21600 seconds, rebind in 37800 seconds
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: writing lease `/var/lib/dhcpcd/dhcpcd-eth0.lease'
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: adding IP address 192.168.1.110/24
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: adding route to 192.168.1.0/24
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: adding default route via 192.168.1.1
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' REBOOT
Nov  1 22:20:55 kenny avahi-daemon[5535]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.110.
Nov  1 22:20:55 kenny avahi-daemon[5535]: New relevant interface eth0.IPv4 for mDNS.
Nov  1 22:20:55 kenny avahi-daemon[5535]: Registering new address record for 192.168.1.110 on eth0.IPv4.
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: ARP announcing 192.168.1.110 (1 of 2), next in 2.0 seconds
Nov  1 22:20:55 kenny dhcpcd[1493]: eth0: removing route to 192.168.1.0/24
Nov  1 22:20:57 kenny ntpd[1540]: Listen normally on 69 eth0 192.168.1.110:123
Nov  1 22:20:57 kenny ntpd[1540]: new interface(s) found: waking up resolver
Nov  1 22:20:57 kenny dhcpcd[1493]: eth0: ARP announcing 192.168.1.110 (2 of 2)

Nov  2 06:40:45 kenny dhcpcd[1493]: eth0: carrier lost
Nov  2 06:40:45 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' NOCARRIER
Nov  2 06:40:45 kenny kernel: r8169 0000:03:00.0 eth0: link down
Nov  2 06:40:45 kenny dhcpcd[1493]: eth0: deleting IP address 192.168.1.110/24
Nov  2 06:40:45 kenny dhcpcd[1493]: eth0: deleting default route via 192.168.1.1
Nov  2 06:40:45 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' EXPIRE
Nov  2 06:40:45 kenny avahi-daemon[5535]: Withdrawing address record for 192.168.1.110 on eth0.
Nov  2 06:40:45 kenny avahi-daemon[5535]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.110.
Nov  2 06:40:45 kenny avahi-daemon[5535]: Interface eth0.IPv4 no longer relevant for mDNS.
Nov  2 06:40:47 kenny ntpd[1540]: Deleting interface #70 eth0, 192.168.1.110#123, interface stats: received=57, sent=58, dropped=0, active_time=13353 secs
Nov  2 06:40:47 kenny ntpd[1540]: 198.245.51.213 local addr 192.168.1.110 -> <null>
Nov  2 06:40:47 kenny ntpd[1540]: 206.108.0.133 local addr 192.168.1.110 -> <null>
Nov  2 06:40:47 kenny ntpd[1540]: 206.108.0.131 local addr 192.168.1.110 -> <null>
Nov  2 06:40:48 kenny dhcpcd[1493]: eth0: carrier acquired
Nov  2 06:40:48 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' CARRIER
Nov  2 06:40:48 kenny kernel: r8169 0000:03:00.0 eth0: link up
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: delaying IPv4 for 0.7 seconds
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: using ClientID 01:00:1c:c0:cd:a1:da
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: reading lease `/var/lib/dhcpcd/dhcpcd-eth0.lease'
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: rebinding lease of 192.168.1.110
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: sending REQUEST (xid 0xe898088e), next in 5.0 seconds
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: acknowledged 192.168.1.110 from 192.168.1.1
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: probing for 192.168.1.110
Nov  2 06:40:49 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (1 of 3), next in 1.7 seconds
Nov  2 06:40:51 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (2 of 3), next in 1.7 seconds
Nov  2 06:40:53 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (3 of 3), next in 2.0 seconds
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: leased 192.168.1.110 for 43200 seconds
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: renew in 21600 seconds, rebind in 37800 seconds
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: writing lease `/var/lib/dhcpcd/dhcpcd-eth0.lease'
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: adding IP address 192.168.1.110/24
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: adding route to 192.168.1.0/24
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: adding default route via 192.168.1.1
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' REBOOT
Nov  2 06:40:55 kenny avahi-daemon[5535]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.110.
Nov  2 06:40:55 kenny avahi-daemon[5535]: New relevant interface eth0.IPv4 for mDNS.
Nov  2 06:40:55 kenny avahi-daemon[5535]: Registering new address record for 192.168.1.110 on eth0.IPv4.
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: ARP announcing 192.168.1.110 (1 of 2), next in 2.0 seconds
Nov  2 06:40:55 kenny dhcpcd[1493]: eth0: removing route to 192.168.1.0/24
Nov  2 06:40:56 kenny ntpd[1540]: Listen normally on 71 eth0 192.168.1.110:123
Nov  2 06:40:56 kenny ntpd[1540]: new interface(s) found: waking up resolver
Nov  2 06:40:57 kenny dhcpcd[1493]: eth0: ARP announcing 192.168.1.110 (2 of 2)

Nov  2 07:42:44 kenny dhcpcd[1493]: eth0: carrier lost
Nov  2 07:42:44 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' NOCARRIER
Nov  2 07:42:44 kenny kernel: r8169 0000:03:00.0 eth0: link down
Nov  2 07:42:44 kenny dhcpcd[1493]: eth0: deleting IP address 192.168.1.110/24
Nov  2 07:42:44 kenny avahi-daemon[5535]: Withdrawing address record for 192.168.1.110 on eth0.
Nov  2 07:42:44 kenny avahi-daemon[5535]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.110.
Nov  2 07:42:44 kenny dhcpcd[1493]: eth0: deleting default route via 192.168.1.1
Nov  2 07:42:44 kenny avahi-daemon[5535]: Interface eth0.IPv4 no longer relevant for mDNS.
Nov  2 07:42:44 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' EXPIRE
Nov  2 07:42:46 kenny ntpd[1540]: Deleting interface #71 eth0, 192.168.1.110#123, interface stats: received=31, sent=32, dropped=0, active_time=3710 secs
Nov  2 07:42:46 kenny ntpd[1540]: 198.245.51.213 local addr 192.168.1.110 -> <null>
Nov  2 07:42:46 kenny ntpd[1540]: 206.108.0.133 local addr 192.168.1.110 -> <null>
Nov  2 07:42:46 kenny ntpd[1540]: 206.108.0.131 local addr 192.168.1.110 -> <null>
Nov  2 07:42:47 kenny kernel: r8169 0000:03:00.0 eth0: link up
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: carrier acquired
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' CARRIER
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: delaying IPv4 for 0.1 seconds
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: using ClientID 01:00:1c:c0:cd:a1:da
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: reading lease `/var/lib/dhcpcd/dhcpcd-eth0.lease'
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: rebinding lease of 192.168.1.110
Nov  2 07:42:47 kenny dhcpcd[1493]: eth0: sending REQUEST (xid 0x1c6923e0), next in 3.5 seconds
Nov  2 07:42:50 kenny dhcpcd[1493]: eth0: sending REQUEST (xid 0x1c6923e0), next in 7.6 seconds
Nov  2 07:42:50 kenny dhcpcd[1493]: eth0: acknowledged 192.168.1.110 from 192.168.1.1
Nov  2 07:42:50 kenny dhcpcd[1493]: eth0: probing for 192.168.1.110
Nov  2 07:42:50 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (1 of 3), next in 1.1 seconds
Nov  2 07:42:52 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (2 of 3), next in 1.9 seconds
Nov  2 07:42:53 kenny dhcpcd[1493]: eth0: ARP probing 192.168.1.110 (3 of 3), next in 2.0 seconds
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: leased 192.168.1.110 for 43200 seconds
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: renew in 21600 seconds, rebind in 37800 seconds
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: writing lease `/var/lib/dhcpcd/dhcpcd-eth0.lease'
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: adding IP address 192.168.1.110/24
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: adding route to 192.168.1.0/24
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: adding default route via 192.168.1.1
Nov  2 07:42:55 kenny dhcpcd[1493]: eth0: executing `/lib/dhcpcd/dhcpcd-run-hooks' REBOOT
Nov  2 07:42:55 kenny avahi-daemon[5535]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.110.
Nov  2 07:42:55 kenny avahi-daemon[5535]: New relevant interface eth0.IPv4 for mDNS.
Nov  2 07:42:55 kenny avahi-daemon[5535]: Registering new address record for 192.168.1.110 on eth0.IPv4.
Nov  2 07:42:56 kenny dhcpcd[1493]: eth0: ARP announcing 192.168.1.110 (1 of 2), next in 2.0 seconds
Nov  2 07:42:56 kenny dhcpcd[1493]: eth0: removing route to 192.168.1.0/24
Nov  2 07:42:57 kenny ntpd[1540]: Listen normally on 72 eth0 192.168.1.110:123
Nov  2 07:42:57 kenny ntpd[1540]: new interface(s) found: waking up resolver
Nov  2 07:42:58 kenny dhcpcd[1493]: eth0: ARP announcing 192.168.1.110 (2 of 2)

 

Any ideas what could be causing this and where I should start troubleshooting?

 

On the router, at the same time it seems like all my devices are requesting an ip address (the timestamp is off because i  didn't set the timezone):

 

Wed Nov  2 02:20:50 2016 daemon.info dnsmasq-dhcp[2520]: DHCPREQUEST(br-lan) 192.168.1.110 00:1c:c0:cd:a1:da 
Wed Nov  2 02:20:50 2016 daemon.info dnsmasq-dhcp[2520]: DHCPACK(br-lan) 192.168.1.110 00:1c:c0:cd:a1:da xxxxx
Wed Nov  2 02:20:54 2016 daemon.info dnsmasq-dhcp[2520]: DHCPREQUEST(br-lan) 192.168.1.122 00:1f:c6:3b:8c:4c 
Wed Nov  2 02:20:54 2016 daemon.info dnsmasq-dhcp[2520]: DHCPACK(br-lan) 192.168.1.122 00:1f:c6:3b:8c:4c xxxxxx
Wed Nov  2 02:20:58 2016 daemon.info dnsmasq-dhcp[2520]: DHCPREQUEST(br-lan) 192.168.1.141 10:9a:dd:56:20:54 
Wed Nov  2 02:20:58 2016 daemon.info dnsmasq-dhcp[2520]: DHCPACK(br-lan) 192.168.1.141 10:9a:dd:56:20:54 xxxxxx

The first things I would check are the cables, the switch (does it keep resetting?) and the Ethernet port on the router/DHCP server. EDIT: Actually, the latter wouldn't cause carrier loss.

 

The first things I would check are the cables, the switch (does it keep resetting?) and the Ethernet port on the router/DHCP server. EDIT: Actually, the latter wouldn't cause carrier loss.

 

Thanks, it's hard to tell if the switch is resetting, i'll try to run to it next time it happens.

I am also investigating the DNSmasq configuration on the router, I am starting to suspect it might be a configuration issue also.

 

The switch resetting sounds like a very likely suspect.  It looks like the whole network dropped out for 3 seconds, each time.

You don't say what kind of switch you're using. A managed switch would show something in its log. An unmanaged switch I would expect to flash its lights.