I'm using an o2 Box 6431 with Release 19.07.1. Overall performance and stability has dramatically improved since 18.06.x. There is just one thing that keeps me scratching my head. I have random DSL disconnects now and then. Could be after 24h, 30 minutes or any other random time. Any idea on how to further debug this? Here are the logs:
dsl_control status
ATU-C Vendor ID: Broadcom 178.18
ATU-C System Vendor ID: Broadcom
Chipset: Lantiq-VRX200
Firmware Version: 5.9.1.4.0.7
API Version: 4.17.18.6
XTSE Capabilities: 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2
Annex: B
Line Mode: G.993.5 (VDSL2 with down- and upstream vectoring)
Profile: 17a
Line State: UP [0x801: showtime_tc_sync]
Forward Error Correction Seconds (FECS): Near: 0 / Far: 129
Errored seconds (ES): Near: 2 / Far: 57
Severely Errored Seconds (SES): Near: 1 / Far: 16
Loss of Signal Seconds (LOSS): Near: 3 / Far: 0
Unavailable Seconds (UAS): Near: 577 / Far: 577
Header Error Code Errors (HEC): Near: 0 / Far: 0
Non Pre-emtive CRC errors (CRC_P): Near: 0 / Far: 0
Pre-emtive CRC errors (CRCP_P): Near: 0 / Far: 0
Power Management Mode: L0 - Synchronized
Latency [Interleave Delay]: 0.13 ms [Fast] 0.0 ms [Fast]
Data Rate: Down: 111.868 Mb/s / Up: 41.770 Mb/s
Line Attenuation (LATN): Down: 5.7 dB / Up: 4.3 dB
Signal Attenuation (SATN): Down: 5.7 dB / Up: 4.2 dB
Noise Margin (SNR): Down: 11.1 dB / Up: 9.3 dB
Aggregate Transmit Power (ACTATP): Down: -3.9 dB / Up: 13.5 dB
Max. Attainable Data Rate (ATTNDR): Down: 130.301 Mb/s / Up: 41.775 Mb/s
Line Uptime Seconds: 27177
Line Uptime: 7h 32m 57s
kernel.log
[113655.544274] leave showtime
[113660.669453] IPv6: ADDRCONF(NETDEV_UP): dsl0: link is not ready
[113660.684368] IPv6: ADDRCONF(NETDEV_UP): dsl0.7: link is not ready
[113760.471532] enter showtime
[113760.473223] IPv6: ADDRCONF(NETDEV_CHANGE): dsl0: link becomes ready
[113760.484579] IPv6: ADDRCONF(NETDEV_CHANGE): dsl0.7: link becomes ready
[113760.498052] enter showtime
[113762.184334] pppoe-wan: renamed from ppp0
system.log
Sat Feb 1 04:58:32 2020 kern.warn kernel: [113655.544274] leave showtime
Sat Feb 1 04:58:32 2020 daemon.notice netifd: Network device 'dsl0' link is down
Sat Feb 1 04:58:33 2020 daemon.notice netifd: VLAN 'dsl0.7' link is down
Sat Feb 1 04:58:33 2020 daemon.notice netifd: Interface 'wan' has link connectivity loss
Sat Feb 1 04:58:33 2020 daemon.info pppd[22326]: Terminating on signal 15
Sat Feb 1 04:58:33 2020 daemon.info pppd[22326]: Connect time 164.3 minutes.
Sat Feb 1 04:58:33 2020 daemon.info pppd[22326]: Sent 55323264 bytes, received 776810218 bytes.
Sat Feb 1 04:58:33 2020 daemon.notice netifd: Network device 'pppoe-wan' link is down
Sat Feb 1 04:58:33 2020 daemon.notice netifd: Network alias 'pppoe-wan' link is down
Sat Feb 1 04:58:33 2020 daemon.notice netifd: Interface 'wan_6' has link connectivity loss
Sat Feb 1 04:58:33 2020 daemon.err odhcp6c[22451]: Failed to send RS (Permission denied)
Sat Feb 1 04:58:33 2020 daemon.err odhcp6c[22451]: Failed to send DHCPV6 message to ff02::1:2 (Permission denied)
Sat Feb 1 04:58:33 2020 daemon.notice netifd: wan_6 (22451): Command failed: Permission denied
Sat Feb 1 04:58:33 2020 daemon.err odhcp6c[22451]: Failed to send DHCPV6 message to ff02::1:2 (Permission denied)
Sat Feb 1 04:58:33 2020 daemon.notice netifd: Interface 'wan_6' is now down
Sat Feb 1 04:58:33 2020 daemon.notice netifd: Interface 'wan_6' is disabled
Sat Feb 1 04:58:38 2020 daemon.notice netifd: Interface 'wan' is now down
Sat Feb 1 04:58:38 2020 daemon.notice netifd: Interface 'wan' is disabled
Sat Feb 1 04:58:38 2020 kern.info kernel: [113660.669453] IPv6: ADDRCONF(NETDEV_UP): dsl0: link is not ready
Sat Feb 1 04:58:38 2020 daemon.notice netifd: Interface 'wan' is enabled
Sat Feb 1 04:58:38 2020 kern.info kernel: [113660.684368] IPv6: ADDRCONF(NETDEV_UP): dsl0.7: link is not ready
Sat Feb 1 04:59:39 2020 daemon.info watchcat[2250]: no internet connectivity for 90 seconds. Reseting when reaching 900
Sat Feb 1 05:00:17 2020 kern.warn kernel: [113760.471532] enter showtime
Sat Feb 1 05:00:17 2020 kern.info kernel: [113760.473223] IPv6: ADDRCONF(NETDEV_CHANGE): dsl0: link becomes ready
Sat Feb 1 05:00:17 2020 daemon.notice netifd: Network device 'dsl0' link is up
Sat Feb 1 05:00:17 2020 kern.info kernel: [113760.484579] IPv6: ADDRCONF(NETDEV_CHANGE): dsl0.7: link becomes ready
Sat Feb 1 05:00:17 2020 daemon.notice netifd: VLAN 'dsl0.7' link is up
Sat Feb 1 05:00:17 2020 daemon.notice netifd: Interface 'wan' has link connectivity
Sat Feb 1 05:00:17 2020 daemon.notice netifd: Interface 'wan' is setting up now
Sat Feb 1 05:00:17 2020 kern.warn kernel: [113760.498052] enter showtime
Sat Feb 1 05:00:18 2020 daemon.err insmod: module is already loaded - slhc
Sat Feb 1 05:00:18 2020 daemon.err insmod: module is already loaded - ppp_generic
Sat Feb 1 05:00:18 2020 daemon.err insmod: module is already loaded - pppox
Sat Feb 1 05:00:18 2020 daemon.err insmod: module is already loaded - pppoe
Sat Feb 1 05:00:19 2020 daemon.info pppd[24525]: Plugin rp-pppoe.so loaded.
Sat Feb 1 05:00:19 2020 daemon.info pppd[24525]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Sat Feb 1 05:00:19 2020 daemon.notice pppd[24525]: pppd 2.4.7 started by root, uid 0
Sat Feb 1 05:00:19 2020 daemon.info pppd[24525]: PPP session is 420
Sat Feb 1 05:00:19 2020 daemon.warn pppd[24525]: Connected to 88:a2:5e:bb:d5:c7 via interface dsl0.7
Sat Feb 1 05:00:19 2020 kern.info kernel: [113762.184334] pppoe-wan: renamed from ppp0
Sat Feb 1 05:00:19 2020 daemon.info pppd[24525]: Renamed interface ppp0 to pppoe-wan
Sat Feb 1 05:00:19 2020 daemon.info pppd[24525]: Using interface pppoe-wan
Sat Feb 1 05:00:19 2020 daemon.notice pppd[24525]: Connect: pppoe-wan <--> dsl0.7
Sat Feb 1 05:00:19 2020 daemon.info pppd[24525]: Remote message: SRU=39336#SRD=96783#
Sat Feb 1 05:00:19 2020 daemon.notice pppd[24525]: PAP authentication succeeded
Sat Feb 1 05:00:19 2020 daemon.notice pppd[24525]: peer from calling number 88:A2:5E:BB:D5:C7 authorized
Sat Feb 1 05:00:21 2020 daemon.notice pppd[24525]: local IP address 93.237.66.58
Sat Feb 1 05:00:21 2020 daemon.notice pppd[24525]: remote IP address 62.155.245.83
Sat Feb 1 05:00:21 2020 daemon.notice pppd[24525]: primary DNS address 217.0.43.145
Sat Feb 1 05:00:21 2020 daemon.notice pppd[24525]: secondary DNS address 217.0.43.129
Sat Feb 1 05:00:21 2020 daemon.notice pppd[24525]: local LL address fe80::e17b:808e:b441:14ce
Sat Feb 1 05:00:21 2020 daemon.notice pppd[24525]: remote LL address fe80::8aa2:5eff:febb:d5c7
Sat Feb 1 05:00:21 2020 daemon.notice netifd: Network device 'pppoe-wan' link is up
Sat Feb 1 05:00:21 2020 daemon.notice netifd: Interface 'wan' is now up
Sat Feb 1 05:00:22 2020 daemon.notice netifd: Network alias 'pppoe-wan' link is up
Sat Feb 1 05:00:22 2020 daemon.notice netifd: Interface 'wan_6' is enabled
Sat Feb 1 05:00:22 2020 daemon.notice netifd: Interface 'wan_6' has link connectivity
Sat Feb 1 05:00:22 2020 daemon.notice netifd: Interface 'wan_6' is setting up now
Sat Feb 1 05:00:28 2020 daemon.notice netifd: Interface 'wan_6' is now up