Strange upload issue

We have had a major telephone line issue over the last month where BT have had to do a cable pull for over 200 lines... during that time we have had no voice line but have still had internet connection.

the fault was repaired over the weekend and since then when I try to do any upload it kills my download speed causing sites to fail to load and everything being very slow.

My connection stats are as follows:
ADSL Link Downstream Upstream
Connection Speed 11582 kbps 1113 kbps
Line Attenuation 35.5 db 18.2 db
Noise Margin 6.8 db 6.5 db

Now doing various speed tests gives different results..
the thinkbroadband one gives me
Speed Down 4289.43 Kbps ( 4.2 Mbps )
Speed Up 60.32 Kbps ( 0.1 Mbps )

If I do one that starts with a download (not doing the quick tests) the download speed is about 8.5 Mbps. This is consistent with my experience.
this happens when uploading via email. ftp, websites etc.

I have plugged the router into the master socket and have replaced the filer on the advice from O2. They are going to escalate it to their 2nd line but wondered if anyone here had any suggestions?

Can you access the error stats? CRC/HEC/FEC for upstream/downstream. Perhaps there are a lot of upstream errors. The errors may be tolerable for the few acks needed to confirm downloads but with additional upload traffic they may be noticeable.

I am not 100% sure how to do that...
I am using a netgear dgn2000 router.. not the O2 one

I love google

adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 1
Channel: INTR, Upstream rate = 1039 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.4 7.0
Attn(dB): 33.0 18.0
Pwr(dBm): 19.8 12.1
Max(Kbps): 10902 1237
Rate (Kbps): 8134 1039
G.dmt framing
K: 236(0) 31
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 59 16
B: 110 31
M: 1 1
T: 3 3
R: 16 0
S: 0.3307 0.9846
L: 3072 260
D: 96 1
Counters
SF: 257239 257179
SFErr: 1 2
RS: 34984568 0
RSCorr: 536 0
RSUnCorr: 1 0

HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 83887695 0
Data Cells: 422580 0
Drop Cells: 0
Bit Errors: 0 0

ES: 2157 21622
SES: 824 5027
UAS: 41697 162130
AS: 4373

INP: 2.00 0.00
PER: 16.12 16.24
delay: 7.93 0.24
OR: 32.25 10.83

Bitswap: 0 0

No idea what it means though - someone who is smarter than me... help
Thanks

and.... (Sorry if its a lot of rubbish)

adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 1
Channel: INTR, Upstream rate = 1039 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.4 7.0
Attn(dB): 33.0 18.0
Pwr(dBm): 19.8 12.1
Max(Kbps): 10902 1237
Rate (Kbps): 8134 1039
G.dmt framing
K: 236(0) 31
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 59 16
B: 110 31
M: 1 1
T: 3 3
R: 16 0
S: 0.3307 0.9846
L: 3072 260
D: 96 1
Counters
SF: 265027 264943
SFErr: 2 2
RS: 36043736 0
RSCorr: 595 0
RSUnCorr: 17 0

HEC: 1 0
OCD: 0 0
LCD: 0 0
Total Cells: 86427410 0
Data Cells: 427045 0
Drop Cells: 0
Bit Errors: 0 0

ES: 2158 21622
SES: 824 5027
UAS: 41697 162130
AS: 4506

INP: 2.00 0.00
PER: 16.12 16.24
delay: 7.93 0.24
OR: 32.25 10.83

Bitswap: 0 0

Total time = 1 days 5 hours 41 min 25 sec
SF = 320839
CRC = 868
LOS = 546
LOF = 721
ES = 2158
Latest 1 day time = 5 hours 41 min 25 sec
SF = 320839
CRC = 868
LOS = 10
LOF = 90
ES = 35
Latest 15 minutes time = 11 min 25 sec
SF = 40297
CRC = 1
LOS = 0
LOF = 0
ES = 1
Previous 15 minutes time = 15 min 0 sec
SF = 52923
CRC = 1
LOS = 0
LOF = 0
ES = 1
Previous 1 day time = 24 hours 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 55
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 1
Last Retrain Reason: 1

Looks like John is on the right track.

There are two ways that different routers label things.

The lines that jump out there are:-

ES: 2157 21622
SES: 824 5027

That's Error Seconds and Serious Error Seconds, with the left-hand figure being Local - which means to do with the upstream. Any idea how long it is since the router was last booted/re-booted? Just reconnecting doesn't reset those figures, and it matters how long those error seconds are spread over.

The Remote, ie downstream ones, are held at the far end and rarely get reset, so don't worry about those. As you are on an "Interleaved" downstream connection they are far less important anyway, but your upstream is Fast Path. (See this Kitz link for an explanation of Interleaving/Fast Path).

Thanks for the quick reply.

The router was rebooted about a week ago - from the reboot option in the web interface.
is there a way to reset the stats and start logging it from now?

Post deleted by RobertoS

Switch it off for twenty minutes.

That will probably connect fractionally slower than it would in daytime. If that concerns you do a normal reboot some time tomorrow, but take and post the stats first.

In reply to a post by nidave:

I am not 100% sure how to do that...

Try http://192.168.0.1/setup.cgi?PATH=/bin:/sbin:/usr/bi... in your browser.

In reply to a post by RobertoS:

with the left-hand figure being Local - which means to do with the upstream.
...
The Remote, ie downstream ones

You have mixed up your "downstream" with your "upstream". The 1st (L) figure is downstream, as the column headings indicate.

Whatever has happened seems to have made it better.
It looks like it has changed my noise margin... just uploaded some images via FTP and they flew up.

Speed Down 5915.59 Kbps ( 5.8 Mbps )
Speed Up 876.83 Kbps ( 0.9 Mbps )

Some stats...

30/08/2011 20:18

adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 1
Channel: INTR, Upstream rate = 1039 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.4 7.0
Attn(dB): 33.0 18.0
Pwr(dBm): 19.8 12.1
Max(Kbps): 10902 1237
Rate (Kbps): 8134 1039
G.dmt framing
K: 236(0) 31
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 59 16
B: 110 31
M: 1 1
T: 3 3
R: 16 0
S: 0.3307 0.9846
L: 3072 260
D: 96 1
Counters
SF: 486631 486591
SFErr: 2 3
RS: 66181880 0
RSCorr: 876 0
RSUnCorr: 17 0

HEC: 1 0
OCD: 0 0
LCD: 0 0
Total Cells: 158693677 0
Data Cells: 839384 0
Drop Cells: 0
Bit Errors: 0 0

ES: 2158 21622
SES: 824 5027
UAS: 41697 162130
AS: 8273

INP: 2.00 0.00
PER: 16.12 16.24
delay: 7.93 0.24
OR: 32.25 10.83

Bitswap: 0 0

Total time = 1 days 6 hours 44 min 12 sec
SF = 542443
CRC = 868
LOS = 546
LOF = 721
ES = 2158
Latest 1 day time = 6 hours 44 min 12 sec
SF = 542443
CRC = 868
LOS = 10
LOF = 90
ES = 35
Latest 15 minutes time = 14 min 12 sec
SF = 50150
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 24 hours 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 55
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52982
CRC = 1
LOS = 0
LOF = 0
ES = 1
Showtime Drop Reason: 1
Last Retrain Reason: 1

-----------------------------------------------
30/08/2011 20:58
adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 0
Channel: INTR, Upstream rate = 1073 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.6 6.0
Attn(dB): 34.0 18.0
Pwr(dBm): 19.8 12.2
Max(Kbps): 10868 1250
Rate (Kbps): 8134 1073
G.dmt framing
K: 236(0) 32
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 1 1
B: 236 32
M: 1 1
T: 1 1
R: 20 0
S: 1.0843 1.0000
L: 1896 264
D: 64 1
Counters
SF: 3834 3833
SFErr: 0 0
RS: 521488 0
RSCorr: 0 0
RSUnCorr: 0 0

HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 1250944 0
Data Cells: 1731 0
Drop Cells: 0
Bit Errors: 0 0

ES: 0 0
SES: 0 0
UAS: 16 0
AS: 65

INP: 2.70 0.00
PER: 1.89 1.75
delay: 17.35 0.25
OR: 29.50 32.00

Bitswap: 0 0

Total time = 1 min 29 sec
SF = 3834
CRC = 0
LOS = 0
LOF = 0
ES = 0
Latest 1 day time = 1 min 29 sec
SF = 3834
CRC = 0
LOS = 0
LOF = 0
ES = 0
Latest 15 minutes time = 1 min 29 sec
SF = 3834
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 0
Last Retrain Reason: 0

-----------------------------------------------
30/08/2011 21:00 - After uplaoding some photos via FTP


adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 0
Channel: INTR, Upstream rate = 1073 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.4 6.0
Attn(dB): 34.0 18.0
Pwr(dBm): 19.8 12.2
Max(Kbps): 10868 1250
Rate (Kbps): 8134 1073
G.dmt framing
K: 236(0) 32
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 1 1
B: 236 32
M: 1 1
T: 1 1
R: 20 0
S: 1.0843 1.0000
L: 1896 264
D: 64 1
Counters
SF: 14277 14217
SFErr: 0 1
RS: 1941736 0
RSCorr: 71 0
RSUnCorr: 0 0

HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 4656469 0
Data Cells: 159516 0
Drop Cells: 0
Bit Errors: 0 0

ES: 0 0
SES: 0 0
UAS: 16 0
AS: 243

INP: 2.70 0.00
PER: 1.89 1.75
delay: 17.35 0.25
OR: 29.50 32.00

Bitswap: 0 0

Total time = 4 min 27 sec
SF = 14277
CRC = 0
LOS = 0
LOF = 0
ES = 0
Latest 1 day time = 4 min 27 sec
SF = 14277
CRC = 0
LOS = 0
LOF = 0
ES = 0
Latest 15 minutes time = 4 min 27 sec
SF = 14277
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 0
Last Retrain Reason: 0

Will post some more stats tomorrow see how it compares...
I am assuming (from what I have read) there will be some changes in the noise margin over the next few days as it tests the line.. or is that only for non LLU lines.

I agree that's how it looks, but as I remember it that section has headings Local/Remote, which don't seem to be present in that listing. Local is definitely upstream.

So you could be right - the reset will tell us as one set won't go to zero. Which reminds me ..., must do a Reply to nidave because of this question.

After you have restarted the router, please can you read and post the stats pretty soon after. So we can confirm which figures are which. As per XRaySpeX.

30/08/2011 22:41

ADSL Link Downstream Upstream
Connection Speed 8134 kbps 1073 kbps
Line Attenuation 34.0 db 18.0 db
Noise Margin 12.6 db 6.0 db


adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 0
Channel: INTR, Upstream rate = 1073 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.4 6.0
Attn(dB): 34.0 18.0
Pwr(dBm): 19.8 12.2
Max(Kbps): 10868 1250
Rate (Kbps): 8134 1073
G.dmt framing
K: 236(0) 32
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 1 1
B: 236 32
M: 1 1
T: 1 1
R: 20 0
S: 1.0843 1.0000
L: 1896 264
D: 64 1
Counters
SF: 369103 369043
SFErr: 3 10
RS: 50198072 0
RSCorr: 772 0
RSUnCorr: 115 0

HEC: 2 2
OCD: 0 0
LCD: 0 0
Total Cells: 120367149 0
Data Cells: 600271 0
Drop Cells: 0
Bit Errors: 0 0

ES: 2 0
SES: 0 0
UAS: 16 0
AS: 6275

INP: 2.70 0.00
PER: 1.89 1.75
delay: 17.35 0.25
OR: 29.50 32.00

Bitswap: 0 0

Total time = 1 hours 44 min 59 sec
SF = 369103
CRC = 3
LOS = 0
LOF = 0
ES = 2
Latest 1 day time = 1 hours 44 min 59 sec
SF = 369103
CRC = 3
LOS = 0
LOF = 0
ES = 2
Latest 15 minutes time = 14 min 59 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52864
CRC = 2
LOS = 0
LOF = 0
ES = 1
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 52982
CRC = 1
LOS = 0
LOF = 0
ES = 1
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 0
Last Retrain Reason: 0

OK, let's see how it goes.

The darn thing has cleared both Local and Remote . I wonder if that is because of being off for a while. How long did you turn off for?

You didn't try the O2 box in between did you?

Interestingly the syncs are identical. Strange that.

Edited by RobertoS (Tue 30-Aug-11 22:47:33)

Altho' it is not a DG834GT or DG834Gv4, those adslctl results are identical to them. There were never "Local/Remote" headers. The headers are here:

Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.4 7.0
Attn(dB): 33.0 18.0
Pwr(dBm): 19.8 12.1
Max(Kbps): 10902 1237
Rate (Kbps): 8134 1039
G.dmt framing

Also the later sections of errors over time (adsl info stats) only report the lower (LH) ES values, which relate only to Down.

So there is no need to wait to confirm

In reply to a post by RobertoS:

Interestingly the syncs are identical. Strange that.

I suspect he did not restart router, but merely did a soft Disconnect/Reconnect" which results in a LCP Down/Up without any resync.

Confirmed by Uptime of 1h 45m going back to about 20:57, same as previous set of stats.

/me shoots himself.

Even odder that both local and remote ES have zeroised then.

It was off for 40 min (I forgot about it).
I didn't try the O2 box - I don't like the router.

Speed Down 5758.28 Kbps ( 5.6 Mbps )
Speed Up 872.70 Kbps ( 0.9 Mbps )

Current stats 31/08/2011 09:32

Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN DHCP Client 75542 92112 0 12503 34057 00:35:15
LAN 10M/100M 67272 99673 0 978 736 12:35:49
WLAN 11M/54M/130M 82819 32338 0 974 143 12:35:38

ADSL Link Downstream Upstream
Connection Speed 8134 kbps 1073 kbps
Line Attenuation 34.0 db 18.0 db
Noise Margin 13.4 db 6.0 db



adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 0
Channel: INTR, Upstream rate = 1073 Kbps, Downstream rate = 8134 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 13.5 6.0
Attn(dB): 34.0 18.0
Pwr(dBm): 19.8 12.2
Max(Kbps): 10868 1250
Rate (Kbps): 8134 1073
G.dmt framing
K: 236(0) 32
R: 20 0
S: 1 1
D: 64 1
ADSL2 framing
MSGc: 1 1
B: 236 32
M: 1 1
T: 1 1
R: 20 0
S: 1.0843 1.0000
L: 1896 264
D: 64 1
Counters
SF: 2670398 2670342
SFErr: 12 37
RS: 363174192 0
RSCorr: 4237 0
RSUnCorr: 278 0

HEC: 9 6
OCD: 0 0
LCD: 0 0
Total Cells: 870831989 0
Data Cells: 1654181 0
Drop Cells: 0
Bit Errors: 0 0

ES: 9 0
SES: 0 0
UAS: 16 0
AS: 45397

INP: 2.70 0.00
PER: 1.89 1.75
delay: 17.35 0.25
OR: 29.50 32.00

Bitswap: 0 0

Total time = 12 hours 37 min 1 sec
SF = 2670398
CRC = 12
LOS = 0
LOF = 0
ES = 9
Latest 1 day time = 12 hours 37 min 1 sec
SF = 2670398
CRC = 12
LOS = 0
LOF = 0
ES = 9
Latest 15 minutes time = 7 min 1 sec
SF = 24780
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 52923
CRC = 1
LOS = 0
LOF = 0
ES = 1
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 0
Last Retrain Reason: 0
#
#

In reply to a post by XRaySpeX:

In reply to a post by RobertoS:

Interestingly the syncs are identical. Strange that.

I suspect he did not restart router, but merely did a soft Disconnect/Reconnect" which results in a LCP Down/Up without any resync.

Confirmed by Uptime of 1h 45m going back to about 20:57, same as previous set of stats.

sorry to sound think - but Did I do it right or not?

It appears you did not switch the router's power OFF & then ON (reboot) as Roberto suggested.

EDIT: There may be a switch on the router to do this, or you may need to unplug the power lead for a few seconds.

Edited by XRaySpeX (Wed 31-Aug-11 14:18:28)

It was unplugged at the wall.