Line target SNR gone from 6 to 9 to 12 and now 15d...

Question

Having connected reliably and almost constantly at 7616 (target SNR 6db) and stayed good for the best part of a year my line is playing up again.
Its gradually stepped from 6db through to 15db over the last two weeks and of course the speed and IP profile are going down the pan too.
I've checked all the usual stuff in the house and tried a substitute router all to no avail.
Now the last time we had this problem it took nearly 2 years to convince BT that it was actually a fault on the line and not the line length! They did eventually fix it (old corroded connectors in a green box) when a mod here forwarded my posts to the 'twitter team'
Is there any chance you could do that again please?
Thanks

Answer 1

Thanks
OK here they are:
You will see that the IP profile hasn't dropped to 4000 yet as the target SNR only went to 15db and the connection speed to 4864 this morning, but when it does the throughput will of course be even slower at about 3700.
Checking my router stats light log I see that it all started to deteriorate on the 30th of May.
Wed 30 May 2012  09:36:07,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:36:22,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:36:37,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:36:52,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:37:07,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:37:22,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:37:37,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:37:52,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:38:07,    Noise Margin= 6.0, Sync Speed= 7520
Wed 30 May 2012  09:38:22,    Noise Margin= --, Sync Speed=
Wed 30 May 2012  09:38:37,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:38:52,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:39:07,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:39:22,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:39:37,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:39:52,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:40:07,    Noise Margin= 9.0, Sync Speed= 6496
Wed 30 May 2012  09:40:22,    Noise Margin= 9.0, Sync Speed= 6496
FAQ
1. Best Effort Test: -provides background information.
Download  Speed
3.91 Mbps
0 Mbps
7.15 Mbps
Max Achievable Speed
 Download speedachieved during the test was - 3.91 Mbps
 For your connection, the acceptable range of speeds is 0.6 Mbps-7.15 Mbps.
 Additional Information:
 Your DSL Connection Rate :4.86 Mbps(DOWN-STREAM), 0.45 Mbps(UP-STREAM)
 IP Profile for your line is - 5 Mbps
Broadband Link – Detailed DSL Statistics
Collected for 19 days 23:36:54
ATM
Since Reset
Current 24-Hour Interval
Current 15-Minute Interval
Time Since
Last Event
Cell Header Errors:
98854
90
0
1:21:51
Loss of Cell Delineation:
2861
84
0
1:21:51
DSL
Link Retrains:
2
1
0
1:21:51
DSL Training Errors:
0
0
0
0:00:00
Training Timeouts:
0
0
0
0:00:00
Loss of Framing Failures:
4
2
0
1:21:51
Loss of Signal Failures:
4
2
0
1:21:51
Loss of Power Failures:
0
0
0
0:00:00
Loss of Margin Failures:
4
2
0
1:21:51
Cumulative Seconds w/Errors:
95063
7
0
1:21:51
Cumulative Sec. w/Severe Errors:
10
2
0
1:21:51
Corrected Blocks:
2559607
89616
256
0:00:00
Uncorrectable Blocks:
113393
89
0
1:21:51
DSL Unavailable Seconds:
95
27
0
1:21:26
Broadband Link – Statistics
ATM Statistics
IP Statistics
DSL
Down
Up
Current Rate:
4864 kbs
448 kbs
Max Rate:
4864 kbs
1004 kbs
Current Connection:
Current Noise Margin:
15.0 dB
23.0 dB
Current Attenuation:
38.1 dB
22.0 dB
Current Output Power:
19.7 dBm
11.9 dBm
ATM
Cells
Errors
Transmit:
29992982
0
0
Receive:
353265243
0
0
IP
Bytes
Packets
Errors
Transmit:
994136148
9647731
0
0
Receive:
3580357745
14033487
0
0