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Frequent disconnects on Plusnet broadband/ASUS DSL-N55U router

Peter1
Newbie
Posts: 1
Registered: 05-06-2016

Frequent disconnects on Plusnet broadband/ASUS DSL-N55U router

Dear all,

I've had a plusnet ASDL broadband and an ASUS DSL-N55U router set-up for a long time now and never had any problems - until now, even though I haven't changed any settings. Over the last few days the internet connection has suffered from frequent disconnections. These occur intermittently, sometimes every few minutes and sometimes it's fine for an hour or two. The problem seems to be getting worse rather than better.

My settings are the standard Plusnet ones:

Settings.png

When it happens I get a 'failure to access" message on the internet browser:Failed access.png

The ASDL log is:

Modulation : G.Dmt
Annex Mode : Annex A/L
Line State : up
Lan Tx : 362506
Lan Rx : 217687
ADSL Tx : 20603
ADSL Rx : 23707
CRC Down : 0
CRC Up : 2
FEC Down : 0
FEC Up : 17
HEC Down : 11
HEC Up : 0
SNR Up : 6.0
SNR Down : 11.0
Line Attenuation Up : 9.0
Line Attenuation Down : 10.5
Data Rate Up : 928
Data Rate Down : 8064

The system log is:

Jun 5 16:28:02 pppd[347]: Serial link appears to be disconnected.
Jun 5 16:28:04 WAN Connection: Fail to connect with some issues.
Jun 5 16:28:04 stop_nat_rules: apply the redirect_rules!
Jun 5 16:28:04 WAN Connection: Ethernet link down.
Jun 5 16:28:08 pppd[347]: Connection terminated.
Jun 5 16:28:08 pppd[347]: Modem hangup
Jun 5 16:28:18 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:28:18 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:28:48 pppd[347]: LCP: timeout sending Config-Requests
Jun 5 16:28:48 pppd[347]: Connection terminated.
Jun 5 16:28:48 pppd[347]: Modem hangup
Jun 5 16:28:58 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:28:58 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:29:28 pppd[347]: LCP: timeout sending Config-Requests
Jun 5 16:29:28 pppd[347]: Connection terminated.
Jun 5 16:29:28 pppd[347]: Modem hangup
Jun 5 16:29:38 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:29:38 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:30:08 pppd[347]: LCP: timeout sending Config-Requests
Jun 5 16:30:08 pppd[347]: Connection terminated.
Jun 5 16:30:08 pppd[347]: Modem hangup
Jun 5 16:30:18 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:30:18 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:30:48 pppd[347]: LCP: timeout sending Config-Requests
Jun 5 16:30:48 pppd[347]: Connection terminated.
Jun 5 16:30:48 pppd[347]: Modem hangup
Jun 5 16:30:58 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:30:58 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:31:28 pppd[347]: LCP: timeout sending Config-Requests
Jun 5 16:31:28 pppd[347]: Connection terminated.
Jun 5 16:31:28 pppd[347]: Modem hangup
Jun 5 16:31:38 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:31:38 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:32:08 pppd[347]: LCP: timeout sending Config-Requests
Jun 5 16:32:08 pppd[347]: Connection terminated.
Jun 5 16:32:08 pppd[347]: Modem hangup
Jun 5 16:32:18 pppd[347]: Connected to 00:aa:bb:01:23:45 via interface eth2.1.1
Jun 5 16:32:18 pppd[347]: Connect: ppp0 <--> eth2.1.1
Jun 5 16:32:38 pppd[347]: CHAP authentication succeeded
Jun 5 16:32:38 pppd[347]: peer from calling number 00:AA:BB:01:23:45 authorized
Jun 5 16:32:38 pppd[347]: local IP address 87.114.231.221
Jun 5 16:32:38 pppd[347]: remote IP address 195.166.130.210
Jun 5 16:32:38 pppd[347]: primary DNS address 213.120.234.42
Jun 5 16:32:38 pppd[347]: secondary DNS address 213.120.234.38
Jun 5 16:32:38 rc_service: ip-up 710:notify_rc stop_upnp
Jun 5 16:32:38 rc_service: ip-up 710:notify_rc start_upnp
Jun 5 16:32:38 rc_service: waitting "stop_upnp" via ip-up ...
Jun 5 16:32:38 miniupnpd[670]: received signal 15, good-bye
Jun 5 16:32:39 WAN Connection: WAN was restored.
Jun 5 16:32:39 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth2.1.1)!
Jun 5 16:32:40 miniupnpd[740]: HTTP listening on port 43698
Jun 5 16:32:40 miniupnpd[740]: Listening for NAT-PMP traffic on port 5351

The ASDL driver version: 3.16.18.1 and the firmware: 3.0.04.374_4422 (both up to date I think).

I've tried resetting the router, different cables, different splitters, and different sockets (including what I think is the master socket). The phone line is working fine - and the problem still occurs even when the phone is disconnected.

I'd really appreciate your ideas. My sister is staying this week to look after my daughter whilst I'm with my younger child in hospital and she needs the internet to do some work!

2 REPLIES
trugmaker
Dabbler
Posts: 17
Registered: 12-10-2012

Re: Frequent disconnects on Plusnet broadband/ASUS DSL-N55U router

I had this for months, despite all tests and recommendations by PlusNet nothing helped. Due to constant and very angry mail from me eventually they sent a BT engineer to my home who discovered a fault at the local BT exchange - BUT it is now happening to my work connection, 1/2 mile away - and my daughter 3 miles away! I think they may have serious hardware issues! 

Plusnet Help Team
Plusnet Help Team
Posts: 4,956
Thanks: 419
Fixes: 152
Registered: 01-01-2012

Re: Frequent disconnects on Plusnet broadband/ASUS DSL-N55U router

@Peter1 It's certainly dropped a lot as shown below.

image14652009985563

Our tests aren't showing any issues so I'd recommend raising a fault at https://faults.plus.net

If this post resolved your issue please click the 'This fixed my problem' button
 Matthew Wheeler
 Plusnet Help Team