ADSL Drops When Using Phone

[iamdjango]

Hi,

I'm experiencing ADSL disconnects when using my phone (usually in the afternoon). I've tried several different microfilters directly at the master socket with face plate removed with no change. Phone/modem are connected to master socket (no extension wiring), which has MK4 VDSL Plate. Furthermore, I recently moved into the property and had the master socket moved.  I noticed on my vigor130 modem that SRN on the upload bins increases when I have a dial tone:

> adsl status snr
 [ Delt SNR : SHOWTIME ]
                    Near End        Far End    Note
 MeasurementTime  :   1024             512
 GroupSize        :      1               1
 NumData          :     32             256
 US: (dB)
 bin=   0:             ,    ,    ,    ,    ,    ,  23,  27,
 bin=   8:           33,  37,  37,  40,  40,  43,  43,  43,
 bin=  16:           43,  43,  43,  43,  43,  42,  40,  40,
 bin=  24:           38,  37,  38,  37,  34,  34,  33,  30,
 DS: (dB)
 bin=   0:          -32, -32, -32, -32, -32, -32, -32, -32,
 bin=   8:          -32, -32, -32, -32, -32, -32, -32, -32,
 bin=  16:          -32, -32, -32, -32, -32, -32, -32, -32,

....

and that I start to see TX CRC errs:

 > adsl status counts

...

[ Counters: 15Min ]
                  Near End        Far End    Note
 ElapsedTime  :    699             699 (seconds)
 CRC          :     41               3
 FEC          :      0               0
 HEC          :      0               1
 CRC_P        :      0               0
 CRCP_P       :      0               0
 CVP_P        :      0               0
 NCD          :      0               0
 LCD          :      0               0
 ES           :     19               1
 SES          :      0               0
 LOSS         :      0               0
 UAS          :      0               0
 LOFS         :      0               0

...

> adsl status

--------------------------- ATU-R Info (hw: annex A, f/w: annex A) -----------
   Running Mode            : ADSL2 Annex A       State                : SHOWTIME
   DS Actual Rate          :  3071000 bps   US Actual Rate       :   883000 bps
   DS Attainable Rate      :  3100000 bps   US Attainable Rate   :   888000 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast 
   DS Interleave Depth     :        1       US Interleave Depth  :        1 
   NE Current Attenuation  :       61 dB    Cur SNR Margin       :        4  dB
   DS actual PSD           :    17. 6 dB    US actual PSD        :    12. 6  dB
   NE Rcvd Cells           :  2046290       NE Xmitted Cells     :  1174209
   NE CRC Count            :     2042       FE CRC Count         :        5
   NE ES Count             :     1048       FE  ES Count         :        3
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
   ITU Version[0]          : b5004946       ITU Version[1]       : 544e0000
   ADSL Firmware Version   : 05-07-02-08-00-01 
   Power Management Mode   : DSL_G997_PMS_L0 
   Test Mode               : DISABLE 
  -------------------------------- ATU-C Info ---------------------------------
   Far Current Attenuation :       34 dB    Far SNR Margin       :        6  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544e71c8
   DSLAM CHIPSET VENDOR    : < IFTN >

Any ideas?

Many thanks in advance.

[imjolly]

was the master socket move done by openreach?  what happened to original master - blanking plate?  have you checked wiring ?  

try quiet line test  dial 17070 option 2  should be quiet and best with corded phone

[john_collis]

Apparently openreach won't accept a linefault unless the line has dropped at least 5 times in a day. I'm sure you can instigate that.

I had a similar problem last year and got the mods involved. They were very helpful. You will need an engineer to change the pair back to the exchange to stand any chance of a fix AND ... DONT allow them to close the fault until you have been fault free for a while. It took months for me and multiple engineer visits to finally get  a resolution, though I am starting to see the problem coming back again now. Old aluminium cables seem to be the scurge 😞 

Another recommendation is to keep a log of when an engineer visits, get a name and phone number if possible. Don't assume that the next engineer will have any details from the previous visit. A name and number will allow them to call the previous engineer.

Keep a log of when you experience dropouts and check the connect speeds after it reconnects. It can all help prove that you have a problem.

[Starwire2000]

‘Apparently openreach won't accept a linefault unless the line has dropped at least 5 times in a day. I'm sure you can instigate that.’

I know for a fact that statement is wrong.

[Starwire2000]

If your Broadband Drops Sync when making/receiving a call then it’ll be a HR Fault.

This can be located and easily fixed by any competent Openreach Engineer and you wouldn’t have to have the pair changed out all the way back to the Exchange.

[iamdjango]

Thanks for the replies.

I tried a quite line test during the dropouts the other day but couldn't hear any noise on the line. The disconnects are fairly intermittently (not had one today or since I restarted the modem) but upstream FE CRC and ES errors do consistently show when I pick up the phone. Here is the modem's status before I pickup:

> adsl status
  --------------------------- ATU-R Info (hw: annex A, f/w: annex A) -----------
   Running Mode            : ADSL2 Annex A       State                : SHOWTIME
   DS Actual Rate          :  3071000 bps   US Actual Rate       :   883000 bps
   DS Attainable Rate      :  3120000 bps   US Attainable Rate   :   892000 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast
   DS Interleave Depth     :        1       US Interleave Depth  :        1
   NE Current Attenuation  :       61 dB    Cur SNR Margin       :        4  dB
   DS actual PSD           :    17. 6 dB    US actual PSD        :    12. 6  dB
   NE Rcvd Cells           :  2478122       NE Xmitted Cells     :  1892858
   NE CRC Count            :     3375       FE CRC Count         :        0
   NE ES Count             :     1804       FE  ES Count         :        0
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
   ITU Version[0]          : b5004946       ITU Version[1]       : 544e0000
   ADSL Firmware Version   : 05-07-02-08-00-01
   Power Management Mode   : DSL_G997_PMS_L0
   Test Mode               : DISABLE
  -------------------------------- ATU-C Info ---------------------------------
   Far Current Attenuation :       34 dB    Far SNR Margin       :        6  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544e71c8
   DSLAM CHIPSET VENDOR    : < IFTN >

and after 30 seconds of dial tone later:

> adsl status
  --------------------------- ATU-R Info (hw: annex A, f/w: annex A) -----------
   Running Mode            : ADSL2 Annex A       State                : SHOWTIME
   DS Actual Rate          :  3071000 bps   US Actual Rate       :   883000 bps
   DS Attainable Rate      :  3116000 bps   US Attainable Rate   :   884000 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast 
   DS Interleave Depth     :        1       US Interleave Depth  :        1 
   NE Current Attenuation  :       61 dB    Cur SNR Margin       :        4  dB
   DS actual PSD           :    17. 6 dB    US actual PSD        :    12. 6  dB
   NE Rcvd Cells           :  2478621       NE Xmitted Cells     :  1893769
   NE CRC Count            :     3377       FE CRC Count         :        8
   NE ES Count             :     1806       FE  ES Count         :        5
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
   ITU Version[0]          : b5004946       ITU Version[1]       : 544e0000
   ADSL Firmware Version   : 05-07-02-08-00-01 
   Power Management Mode   : DSL_G997_PMS_L0 
   Test Mode               : DISABLE 
  -------------------------------- ATU-C Info ---------------------------------
   Far Current Attenuation :       34 dB    Far SNR Margin       :        6  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544e71c8
   DSLAM CHIPSET VENDOR    : < IFTN >

So what would be the next step, wait for a mod or try and organise an engineer visit myself?

[john46]

Phone and request an engineer visit 0800 111 4567