Very frustrated at speed drop

[Rottie]

Hi all,

Since we've been having all this rain lately, good old DLM's kicked in massively on my line and now I've gone from having a nice, stable 74.34Mb DL speed to just over 52Mb DL.

I know it's down to the bad weather, as whenever it rains for more than a day or two, DLM kicks in and knocks a few Mbs off my speed and increases my latency from the usual ~5-6ms to bbc.co.uk to ~16-20ms. 😞

a speed test taken today, http://www.speedtest.net/my-result/3330968673

compared to http://www.speedtest.net/my-result/3230925840 which is what I used to get. 😞

Suffice to say, I'm not a happy camper, as DLM has now shaved almost a quarter off my DL speed.

Oh and before I'm asked, yes I am connecting via ethernet to the router.

I've just tried the BT speed tester to check the all-important IP profile, but right now, it's not working for me. 😞

**Edited to clean up urls to speedtests above @ 14:35**

**Edited @ 14:44 to include traceroutes and pings (below)**

Last login: Tue Feb 25 08:30:23 on console
DS9:~ kev$ ping -c 10 bbc.co.uk
PING bbc.co.uk (212.58.246.104): 56 data bytes
64 bytes from 212.58.246.104: icmp_seq=0 ttl=51 time=17.384 ms
64 bytes from 212.58.246.104: icmp_seq=1 ttl=51 time=17.514 ms
64 bytes from 212.58.246.104: icmp_seq=2 ttl=51 time=17.286 ms
64 bytes from 212.58.246.104: icmp_seq=3 ttl=51 time=17.553 ms
64 bytes from 212.58.246.104: icmp_seq=4 ttl=51 time=17.292 ms
64 bytes from 212.58.246.104: icmp_seq=5 ttl=51 time=17.289 ms
64 bytes from 212.58.246.104: icmp_seq=6 ttl=51 time=17.539 ms
64 bytes from 212.58.246.104: icmp_seq=7 ttl=51 time=17.382 ms
64 bytes from 212.58.246.104: icmp_seq=8 ttl=51 time=17.724 ms
64 bytes from 212.58.246.104: icmp_seq=9 ttl=51 time=17.325 ms

--- bbc.co.uk ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 17.286/17.429/17.724/0.140 ms
DS9:~ kev$ traceroute -I bbc.co.uk
traceroute: Warning: bbc.co.uk has multiple addresses; using 212.58.246.104
traceroute to bbc.co.uk (212.58.246.104), 64 hops max, 72 byte packets
 1  192.168.1.1 (192.168.1.1)  0.599 ms  0.307 ms  0.224 ms
 2  217.32.146.78 (217.32.146.78)  14.735 ms  14.834 ms  14.512 ms <--- Interleaving at 1st hop from router
 3  217.32.146.126 (217.32.146.126)  15.255 ms  15.475 ms  14.958 ms
 4  217.32.147.234 (217.32.147.234)  15.279 ms  15.555 ms  15.426 ms
 5  217.41.168.149 (217.41.168.149)  15.258 ms  15.392 ms  15.276 ms
 6  217.41.168.107 (217.41.168.107)  15.466 ms  15.466 ms  15.423 ms
 7  109.159.249.68 (109.159.249.68)  15.580 ms  15.503 ms  15.724 ms
 8  core2-te0-0-0-6.faraday.ukcore.bt.net (109.159.249.3)  20.230 ms  22.520 ms  15.766 ms
 9  host213-121-193-139.ukcore.bt.net (213.121.193.139)  15.910 ms  15.971 ms  15.749 ms
10  194.74.65.42 (194.74.65.42)  16.012 ms  16.164 ms  16.809 ms
11  * * *
12  ae0.er01.cwwtf.bbc.co.uk (132.185.254.93)  17.553 ms  17.491 ms  17.664 ms
13  132.185.255.165 (132.185.255.165)  17.544 ms  17.433 ms  18.311 ms
14  fmt-vip133.cwwtf.bbc.co.uk (212.58.246.104)  17.439 ms  17.245 ms  17.247 ms
DS9:~ kev$

[Rottie]

IP Profile: 61.37Mbps

[Robbo88]

Have a look in your Event logs and see if this appeared at anytime - 

05:23:02, 24 Feb.	( 179.300000) CWMP: session completed successfully
05:23:02, 24 Feb.	( 179.100000) CWMP: HTTP authentication success from https://pbthdm.bt.mo
05:22:59, 24 Feb.	( 176.050000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:22:59, 24 Feb.	( 176.050000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
05:22:29, 24 Feb.	( 145.830000) CWMP: session closed due to error: WGET TLS error
05:22:23, 24 Feb.	( 139.130000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:22:23, 24 Feb.	( 139.130000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
05:21:21, 24 Feb.	( 76.910000) CWMP: session closed due to error: Could not resolve host
05:21:21, 24 Feb.	( 76.890000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:21:21, 24 Feb.	( 76.880000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
05:20:50, 24 Feb.	( 46.670000) CWMP: session closed due to error: Could not resolve host
05:20:43, 24 Feb.	( 39.390000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:20:43, 24 Feb.	( 39.390000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
05:20:43, 24 Feb.	( 38.990000) CWMP: Initializing transaction for event code 1 BOOT
02:22:05, 24 Feb.	( 176.470000) CWMP: session completed successfully
02:22:05, 24 Feb.	( 176.260000) CWMP: HTTP authentication success from https://pbthdm.bt.mo
02:22:02, 24 Feb.	( 172.980000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
02:22:02, 24 Feb.	( 172.980000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
02:21:32, 24 Feb.	( 142.760000) CWMP: session closed due to error: WGET TLS error
02:21:26, 24 Feb.	( 136.500000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
02:21:26, 24 Feb.	( 136.490000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
02:20:28, 24 Feb.	( 78.260000) CWMP: session closed due to error: Could not resolve host
02:20:28, 24 Feb.	( 78.240000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
02:20:28, 24 Feb.	( 78.230000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
02:19:58, 24 Feb.	( 48.020000) CWMP: session closed due to error: Could not resolve host
02:19:50, 24 Feb.	( 40.720000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
02:19:50, 24 Feb.	( 40.720000) CWMP: Session start now. Event code(s): '1 BOOT,4 VALUE CHANGE'
02:19:50, 24 Feb.	( 40.320000) CWMP: Initializing transaction for event code 1 BOOT

[Rottie]

Hi there,

I don't use a HH. I use a proper router (Netgear WNR3500L) 😉

There are lots of disconnects in the logs, but that is to be expected when DLM forces a modem resynch. 😞

[Robbo88]

What have you got as a modem?

When you say disconnections what is being listed?

[bartman1967]

---

@Rottie wrote:

Hi all,

Since we've been having all this rain lately, good old DLM's kicked in massively on my line and now I've gone from having a nice, stable 74.34Mb DL speed to just over 52Mb DL.

I know it's down to the bad weather, as whenever it rains for more than a day or two, DLM kicks in and knocks a few Mbs off my speed and increases my latency from the usual ~5-6ms to bbc.co.uk to ~16-20ms. 😞

a speed test taken today, http://www.speedtest.net/my-result/3330968673

compared to http://www.speedtest.net/my-result/3230925840 which is what I used to get. 😞

---

You had a nice ping, I had one like that once, a while back, over a year, been interleaved all the time, look at my TBB monitor:

Enjoy, yours might last as long as mine has, its come to a point where I believe it will never drop.

[Rottie]

Hi again,

I have the white BT modem

Here's an example of the log entries I get on d/c

Monday, Feb 24,2014 18:12:39
[Time synchronized with NTP server] Monday, Feb 24,2014 18:00:30
[Internet connected] IP address: 86.183.71.15, Monday, Feb 24,2014 18:00:35
[Internet disconnected] Monday, Feb 24,2014 18:00:05

[Rottie]

---

@bartman1967 wrote:

---

@Rottie wrote:

Hi all,

Since we've been having all this rain lately, good old DLM's kicked in massively on my line and now I've gone from having a nice, stable 74.34Mb DL speed to just over 52Mb DL.

I know it's down to the bad weather, as whenever it rains for more than a day or two, DLM kicks in and knocks a few Mbs off my speed and increases my latency from the usual ~5-6ms to bbc.co.uk to ~16-20ms. 😞

a speed test taken today, http://www.speedtest.net/my-result/3330968673

compared to http://www.speedtest.net/my-result/3230925840 which is what I used to get. 😞

---

You had a nice ping, I had one like that once, a while back, over a year, been interleaved all the time, look at my TBB monitor:

Enjoy, yours might last as long as mine has, its come to a point where I believe it will never drop.

---

Hi Batman,

Usually my line recovers after a few days, when DLM stops picking on it. Don't look like that's about to happen this time, though. 😞

I just wish there was some way that BT/OR would track down the obvious external break/join in the cable that's affected when it rains. 😞 This has been an ongoing issue ever since I got the first ADSL variant back in 2000 ish. 😞

[Robbo88]

@Rottie - The open reach HG612?

[Rottie]

---

@Robbo88 wrote:

@Rottie - The open reach HG612?

---

Hi again,

Yep it's a HG612 rev 3B (Just double checked)