› UKTH forums › 📡 Broadband Tech & ISP’s › 💬 BT › BT Infinity Disconnects
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September 5, 2018 at 7:10 pm #486
I am getting disconnects.
I have BT infinity FTTC I am Using Draytek 130 modem and Asus Rt-AC66u running latest Merlin fw, my Draytek System Uptime is 430:25:32 and I have had 5 disconnects. How can I tell what caused the disconnects? Here are my Dratek logs –
———————- ATU-R Info (hw: annex A, f/w: annex A/B/C) ———–
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 45045000 bps US Actual Rate : 11899000 bps
DS Attainable Rate : 45223048 bps US Attainable Rate : 11897828 bps
DS Path Mode : Fast US Path Mode : Fast
DS Interleave Depth : 1 US Interleave Depth : 1
NE Current Attenuation : 20 dB Cur SNR Margin : 6 dB
DS actual PSD : 6. 4 dB US actual PSD : 13. 0 dB
NE CRC Count : 0 FE CRC Count : 510
NE ES Count : 0 FE ES Count : 370
Xdsl Reset Times : 0 Xdsl Link Times : 5
ITU Version[0] : b5004946 ITU Version[1] : 544e0000
VDSL Firmware Version : 05-07-06-0D-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
——————————– ATU-C Info ———————————
Far Current Attenuation : 27 dB Far SNR Margin : 6 dB
CO ITU Version[0] : b5004946 CO ITU Version[1] : 544ed086
DSLAM CHIPSET VENDOR : < IFTN >———————- ATU-R Info (hw: annex A, f/w: annex A/B/C) ———–
Near End Far End Note
Trellis : 1 1
Bitswap : 0 1
ReTxEnable : 0 0
VirtualNoise : 0 0
20BitSupport : 0 0
LatencyPath : 0 0
LOS : 2 0
LOF : 0 0
LPR : 0 0
LOM : 0 0
SosSuccess : 0 0
NCD : 0 0
LCD : 0 0
FECS : 96 16584 (seconds)
ES : 2 370 (seconds)
SES : 0 10 (seconds)
LOSS : 0 0 (seconds)
UAS : 39 15944 (seconds)
HECError : 0 0
CRC : 8 510
RsCorrection : 0 0
INP : 0 0 (symbols)
InterleaveDelay : 0 0 (1/100 ms)
NFEC : 255 255
RFEC : 16 16
LSYMB : 3192 12073
INTLVBLOCK : 255 255
AELEM : 0Asus router logs at disconnect –
Sep 5 18:59:53 pppd[395]: No response to 10 echo-requests Sep 5 18:59:53 pppd[395]: Serial link appears to be disconnected. Sep 5 18:59:53 pppd[395]: Connect time 10202.4 minutes. Sep 5 18:59:53 pppd[395]: Sent 1154692654 bytes, received 94037216 bytes. Sep 5 18:59:53 miniupnpd[31197]: Failed to get IP for interface ppp0 Sep 5 18:59:53 miniupnpd[31197]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping Sep 5 18:59:53 dnsmasq[29122]: read /etc/hosts - 6 addresses Sep 5 18:59:53 dnsmasq[29122]: read /etc/hosts.dnsmasq - 24 addresses Sep 5 18:59:53 dnsmasq-dhcp[29122]: read /etc/ethers - 24 addresses Sep 5 18:59:53 dnsmasq[29122]: using nameserver 8.8.8.8#53 Sep 5 18:59:53 dnsmasq[29122]: using nameserver 8.8.4.4#53 Sep 5 18:59:57 WAN_Connection: Fail to connect with some issues. Sep 5 18:59:57 stop_nat_rules: apply the redirect_rules! Sep 5 18:59:59 pppd[395]: Connection terminated. Sep 5 18:59:59 pppd[395]: Sent PADT Sep 5 18:59:59 pppd[395]: Modem hangup Sep 5 19:00:09 pppd[395]: PPP session is 264 (0x108) Sep 5 19:00:09 pppd[395]: Connected to a0:f3:e4:34:0c:97 via interface eth0 Sep 5 19:00:09 pppd[395]: Using interface ppp0 Sep 5 19:00:09 pppd[395]: Connect: ppp0 <--> eth0 Sep 5 19:00:09 pppd[395]: CHAP authentication succeeded: CHAP authentication success Sep 5 19:00:09 pppd[395]: CHAP authentication succeeded Sep 5 19:00:09 pppd[395]: peer from calling number A0:F3:E4:34:0C:97 authorized Sep 5 19:00:09 miniupnpd[31197]: Failed to get IP for interface ppp0 Sep 5 19:00:09 miniupnpd[31197]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping Sep 5 19:00:09 miniupnpd[31197]: Failed to get IP for interface ppp0 Sep 5 19:00:09 miniupnpd[31197]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping Sep 5 19:00:09 miniupnpd[31197]: Failed to get IP for interface ppp0 Sep 5 19:00:09 miniupnpd[31197]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping Sep 5 19:00:10 pppd[395]: local IP address Sep 5 19:00:10 pppd[395]: remote IP address Sep 5 19:00:10 miniupnpd[31197]: ioctl(s, SIOCGIFADDR, ...): Cannot assign requested address Sep 5 19:00:10 miniupnpd[31197]: Failed to get IP for interface ppp0 Sep 5 19:00:10 miniupnpd[31197]: SendNATPMPPublicAddressChangeNotification: cannot get public IP address, stopping Sep 5 19:00:10 dnsmasq-dhcp[29122]: router advertisement on 2002:5188:135f::, old prefix for br0 Sep 5 19:00:10 dnsmasq-dhcp[29122]: DHCPv6 stateless on 2002:d92a:eb7e::, constructed for br0 Sep 5 19:00:10 dnsmasq-dhcp[29122]: router advertisement on 2002:d92a:eb7e::, constructed for br0 Sep 5 19:00:10 kernel: IPv6 over IPv4 tunneling driver Sep 5 19:00:11 kernel: Dead loop on virtual device v6tun0, fix it urgently! Sep 5 19:00:11 kernel: Dead loop on virtual device v6tun0, fix it urgently! Sep 5 19:00:11 kernel: Dead loop on virtual device v6tun0, fix it urgently! Sep 5 19:00:11 kernel: Dead loop on virtual device v6tun0, fix it urgently! Sep 5 19:00:12 kernel: Dead loop on virtual device v6tun0, fix it urgently! Sep 5 19:00:12 kernel: Dead loop on virtual device v6tun0, fix it urgently! Sep 5 19:00:12 rc_service: ip-up 1778:notify_rc start_firewall Sep 5 19:00:12 miniupnpd[31197]: shutting down MiniUPnPd Sep 5 19:00:12 dnsmasq[29122]: read /etc/hosts - 6 addresses Sep 5 19:00:12 dnsmasq[29122]: read /etc/hosts.dnsmasq - 24 addresses Sep 5 19:00:12 dnsmasq-dhcp[29122]: read /etc/ethers - 24 addresses Sep 5 19:00:12 dnsmasq[29122]: using nameserver 8.8.8.8#53 Sep 5 19:00:12 dnsmasq[29122]: using nameserver 8.8.4.4#53 Sep 5 19:00:12 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)! Sep 5 19:00:13 rc_service: ip-up 1778:notify_rc stop_upnp Sep 5 19:00:13 rc_service: waitting "start_firewall" via ip-up ... Sep 5 19:00:13 miniupnpd[1941]: HTTP listening on port 38359 Sep 5 19:00:13 miniupnpd[1941]: Listening for NAT-PMP/PCP traffic on port 5351 Sep 5 19:00:14 rc_service: ip-up 1778:notify_rc start_upnp Sep 5 19:00:14 rc_service: waitting "stop_upnp" via ip-up ... Sep 5 19:00:14 miniupnpd[1941]: shutting down MiniUPnPd Sep 5 19:00:15 miniupnpd[1956]: HTTP listening on port 57182 Sep 5 19:00:15 miniupnpd[1956]: Listening for NAT-PMP/PCP traffic on port 5351 Sep 5 19:00:16 kernel: HTB: quantum of class 10002 is big. Consider r2q change. Sep 5 19:00:16 kernel: HTB: quantum of class 10060 is big. Consider r2q change. Sep 5 19:00:17 WAN_Connection: WAN was restored.
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September 5, 2018 at 8:20 pm #489You do seem to be having fun, does the DrayTeK at any point say it is in training mode in the UI, if so then I think a call with ISP is needed, to check for line faults, (again) also make sure DrayTek 130 is running firmware 3.8.3 BT
Also maybe worth looking at ASUS router and see if you can do the following, change the settings of the router to enable baby jumbo frames and an MTU of 1508, see if this helps?
Alas a case of trial an error ;-)
In a completely sane world, madness is the only freedom (J.G.Ballard).
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September 5, 2018 at 10:09 pm #491Can not enable baby jumbo frames only jumbo frames in lan switch control settings. Can not see any where in Draytek UI that it is in training mode.
should I still change MTU to 1508 in wan setting on router?
Draytek 130 is running fw 3.8.3 BT
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September 6, 2018 at 7:22 am #493Just before you do that, when you say you have had the five disconnects, are these every day, or random, I forgot to ask last night ?
In a completely sane world, madness is the only freedom (J.G.Ballard).
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September 6, 2018 at 2:18 pm #494September 6, 2018 at 2:45 pm #495Is this Random, once a week, every few days?
In a completely sane world, madness is the only freedom (J.G.Ballard).
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September 6, 2018 at 5:56 pm #510September 6, 2018 at 8:24 pm #511Glad I asked, In my view, this is perfectly normal, the DSLAM/Exchange does periodically reset connection with modem device, just to refine connections etc, mine is also every other week, and this is regardless of DSL Chipset, I did at one stage (like you I think) have the DSL-AC68U and this re-sync’d almost every few days.
Does the Synch cause any problems, ie. does this leave router hanging afterwards, if not then I would not worry about this at all ;-)
In a completely sane world, madness is the only freedom (J.G.Ballard).
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September 6, 2018 at 8:54 pm #512No porblems just drops connection and reconnects a minute or two later.
I was worried as it never done this with my Netgear setup (D7800)
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September 6, 2018 at 9:23 pm #513Good news then, How did you become aware of the random disconnects, was this by looking in the logs, or via using the service, and then it not being available for a couple of minutes, the DrayTeK and ASUS logs are more comprehensive, where as the logs for the Netgear D7800 are much more basic.
Either way, just keep an eye on your line stats, to see if over time, the synch speeds changes dramatically ?
In a completely sane world, madness is the only freedom (J.G.Ballard).
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September 6, 2018 at 10:02 pm #516Noticed it on the logs in Draytek and Asus, and once it happened whilst I was home using the internet.
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November 27, 2018 at 7:06 pm #1637Can some one check if interleaving has kicked in on my line please?
my speed has dropped slightly and down stream interleaved depth has increased from 1 to 587.
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November 27, 2018 at 8:34 pm #1639Yep! our interleaving has increased – maybe due to weather changes / line condition etc.?
Your current SNR was 6, now 5, so that is good also.
In a completely sane world, madness is the only freedom (J.G.Ballard).
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November 27, 2018 at 9:58 pm #1640I have not had disconnects or any other problems with my line. So perhaps it is the weather, will it recover and how long will it take?
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November 27, 2018 at 10:41 pm #1641It should, but no idea of timescales, best just keep an eye on it over the next week or so?
In a completely sane world, madness is the only freedom (J.G.Ballard).
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