Re: Persistent Dropped Connections.
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Re: Persistent Dropped Connections.
18-05-2015 7:00 PM
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Looking at the figures posted by Chris, the line synch speed is right on the nail for ADSL(1) at the reported DS attenuation. 61dB is though somewhat at the far end of viable ADSL operation. I'm guessing that you are on a long rural line? Look at this link to get line length estimations - http://www.kitz.co.uk/adsl/adslchecker.php - should be about 4.4km.
The 7dB SNRM rather implies that there was noise present on the line at the time of the last resynch - indeed looking at the RADIUS plot the link was down for about an hour. That could have been BT maintenance... but that would be pure speculation.
Recommend that you follow the speed issues thread (see link below) and report back here all of the requested information. Also do a quiet line check - dial 17070 option 2 using a corded phone in the master socket.
Kevin
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Re: Persistent Dropped Connections.
18-05-2015 7:17 PM
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Its something I have to follow up when I return home, yes its a long line as we are out in the sticks on the east coast
Re: Persistent Dropped Connections.
18-05-2015 7:20 PM
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In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
If this post helped, please click the Thumbs Up and if it fixed your issue, please click the This fixed my problem green button below.
Re: Persistent Dropped Connections.
18-05-2015 7:35 PM
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Re: Persistent Dropped Connections.
20-05-2015 9:01 AM
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Re: Persistent Dropped Connections.
20-05-2015 11:14 AM
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Oh dear! That (along with recognising you have the 2704n router) is not good news. That is a very useful observation and is indicative of intermittent line noise - possibly audible, may be not. The reason that the router version is "bad news" is that the usual tools for monitoring line performance do not work with that router.
Is there noise you can hear on the line? Dial 17070 option 2.
When the SNRM falls, I would expect that the retransmission (error rate) will rise, therefore a portion of the available bandwidth is effectively wasted.
Look at the suggestions in post #10.
Follow-up on the outstanding fault report.
Kevin
In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
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Re: Persistent Dropped Connections.
20-05-2015 1:58 PM
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cheers
Re: Persistent Dropped Connections.
20-05-2015 3:32 PM
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Re: Persistent Dropped Connections.
20-05-2015 4:06 PM
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i have connected the 7800n and the stats have changed to
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode G.DMT
Upstream 448
Downstream 3232
SNR Margin(Upstream) 14.0
SNR Margin(Downstream) 6.0
Line Attenuation(Upstream) 31.5
Line Attenuation(Downstream) 63.5
which software do i need to monitor my line please , i went to argos and bought a corded phone ( £5.99) and did a quiet line test pluged in to the in the bt box with nothing else on and all i could here was a faint buzzing ,no crackling or pops, does that sound right
many thanks for the help with this
Re: Persistent Dropped Connections.
21-05-2015 10:23 AM
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snr dropped to 0 and then line relinked at 3392kbps and snr at 5.9 , is this how the line works , stats below and a graph of the snr drop, clear line test at master socket only faint buzzing heard
thanks for any help or advise which way to go now
adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Max: Upstream rate = 812 Kbps, Downstream rate = 3424 Kbps
Channel: FAST, Upstream rate = 448 Kbps, Downstream rate = 3392 Kbps
Link Power State: L0
Mode: G.DMT
TPS-TC: ATM Mode
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.1 16.0
Attn(dB): 63.5 31.5
Pwr(dBm): 18.7 12.3
G.dmt framing
K: 107(0) 15
R: 0 0
S: 1 1
😧 1 1
Counters
SF: 56875 56815
SFErr: 817 0
RS: 0 0
RSCorr: 0 0
RSUnCorr: 0 0
HEC: 753 0
OCD: 0 0
LCD: 0 0
Total Cells: 7734303 0
Data Cells: 116555 0
Drop Cells: 0
Bit Errors: 0 0
ES: 29977 0
SES: 415 0
UAS: 179 179
AS: 966
INP: 0.00 0.00
PER: 1.75 1.75
delay: 0.25 0.25
OR: 32.00 32.00
Bitswap: 26 17
Total time = 17 hours 41 min 23 sec
FEC: 0 0
CRC: 66279 0
ES: 29977 0
SES: 415 0
UAS: 179 179
LOS: 3 0
LOF: 27 0
Latest 15 minutes time = 11 min 23 sec
FEC: 0 0
CRC: 479 0
ES: 468 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 0 0
CRC: 1705 0
ES: 486 0
SES: 26 0
UAS: 11 11
LOS: 1 0
LOF: 9 0
Latest 1 day time = 17 hours 41 min 23 sec
FEC: 0 0
CRC: 66279 0
ES: 29977 0
SES: 415 0
UAS: 179 179
LOS: 3 0
LOF: 27 0
Previous 1 day time = 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Since Link time = 16 min 5 sec
FEC: 0 0
CRC: 817 0
ES: 652 0
SES: 4 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
>
Re: Persistent Dropped Connections.
21-05-2015 3:14 PM
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Did anything happen/coincide with the SNR hitting 0? Received a phone call, made a call, any heating etc come on?
I've just tested the phone line and no fault condition was found.
Re: Persistent Dropped Connections.
21-05-2015 3:26 PM
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On my plusnet page it shows my speed at 2mb can this be reset to match my sync speed or do I have to wait
Happy with the snr at 6db
Thanks
Chris
Re: Persistent Dropped Connections.
21-05-2015 3:55 PM
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Re: Persistent Dropped Connections.
21-05-2015 4:09 PM
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Cheers
Chris
Re: Persistent Dropped Connections.
21-05-2015 4:17 PM
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