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[GigabitEthernet]

I would certainly notice 31 resyncs in a single day.

He obsesses over stats WAY too much yes but he has a genuine fault this time and an engineer is being sent.

But doesn’t G.Fast use SRA?

[adslmax]

My G.fast went down 31 times because snr kept dropped. As my connection isn't stable with faulty faceplate socket. My isp say the line is faulty and booked engineer on Tuesday.

[j0hn]

But doesn’t G.Fast use SRA?

SRA just means rather than the sync rate staying static and the SNRM fluctuating, the SNRM will remain on its target and the sync rate will fluctuate instead.

G.Fast still resyncs just like VDSL2 and it takes just as long to do said resync.

[adslmax]

I thought G.fast is always ON - shouldn't resync at all. If max rate change or snr change it will change itself without losing connection but if 31 resync mean 31 times the router keep going on and off from the DSL light flashing on and off.

Code: [Select]

FastRetr:       32
FailedRetr:     31
FailedFastRetr: 42

Up to dated: the router still connected to test socket with adsl filter still stable all day except once resync this morning.

Code: [Select]

Downstream Upstream
Line attenuation (dB):  36.9 0.0
Signal attenuation (dB): 36.9 0.0
Connection speed (kbps): 230132 28633
SNR margin (dB):        3.1 3.1
Power (dBm):            0.0 4.1
Interleave depth:       
INP:                    607.00 627.00
G.INP:                  Not enabled Not enabled
Vectoring status:        Unknown


[adslmax]

I just checked my electricity meter in the bin cupboard earlier on today. I have noticed junction box BT52A is all damped in the bin cupboard. That's could be faulty to line noisey. I will let the engineer know about this tomorrow.

[tubaman]

I thought G.fast is always ON - shouldn't resync at all. ...

Read @j0hn post - it tries to keep the SNRM constant by adjusting the speed. It can only do this to a certain extent though, and if errors get too high will resync at a higher SNRM.
The stats in your first post showed SNRM at ~20dB rather than ~3dB that is usual for your line.
 

[Reformed]

I just checked my electricity meter in the bin cupboard earlier on today. I have noticed junction box BT52A is all damped in the bin cupboard. That's could be faulty to line noisey. I will let the engineer know about this tomorrow.

Good, and perhaps your landlord. There shouldn't be mould/damp in the property.

[tubaman]

Good, and perhaps your landlord. There shouldn't be mould/damp in the property.

From photos that Max has posted in the past I think it's an outdoor cupboard so condensation/damp at this time of year wouldn't be too surprising.

[adslmax]

Yes the bin cupboard was awful damp and full of spider web

[adslmax]

Engineer has texted me say he is on his way to sort out my broadband fault in half an hour. I better get cup of tea and chocolate biscuit ready for him. 

[adslmax]

Engineer is here. He found a fault and say the cable need to be replaced and will sort out the junction box in the bin cupboard. Will take few hour job.

[adslmax]

The engineer has replaced new dsl cable from the bin cupboard moved to other side and replaced new master socket MK4. Tested and told me great news I am now on full max rate after resetted to open profile. I am so happy and glad to have G.fast resolved.   

Before Engineer:

Code: [Select]

Stats recorded 11 Jan 2022 08:28:55

DSLAM type / SW version: BDCM:0xc190 (193.144) / v0xc190
Modem/router firmware:  AnnexA version - A2pvfbH043q.d26u
DSL mode:                G
Status:                  Showtime
Uptime:                  6 hours 56 min 23 sec
Resyncs:                1 (since 11 Jan 2022 01:30:04)

Downstream Upstream
Line attenuation (dB):  37.4 0.0
Signal attenuation (dB): 37.4 0.0
Connection speed (kbps): 233987 38624
SNR margin (dB):        3.1 3.1
Power (dBm):            0.0 4.1
Interleave depth:       
INP:                    607.00 607.00
G.INP:                  Not enabled Not enabled
Vectoring status:        Unknown

RSCorr/RS (%):          0.0018 0.0347
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                0 0

============================================================================
    xDSL Training Status:   Showtime
                    Mode:   G.fast Annex A
            Traffic Type:   PTM Mode
             Link Uptime:   0 day: 6 hours: 56 minutes
============================================================================
       xDSL Port Details       Upstream         Downstream
               Line Rate:     38.809 Mbps      234.500 Mbps
    Actual Net Data Rate:     38.624 Mbps      233.987 Mbps
          Trellis Coding:         ON                ON
              SNR Margin:        3.1 dB            3.1 dB
            Actual Delay:          0 ms              0 ms
          Transmit Power:        4.1 dBm           0.0 dBm
           Receive Power:        4.7 dBm           3.0 dBm
              Actual INP:      607.0 symbols     607.0 symbols
Attainable Net Data Rate:     38.624 Mbps      233.968 Mbps
============================================================================

After Engineer:

Code: [Select]

Stats recorded 11 Jan 2022 10:31:55

DSLAM type / SW version: BDCM:0xc190 (193.144) / v0xc190
Modem/router firmware:  AnnexA version - A2pvfbH043q.d26u
DSL mode:                G
Status:                  Showtime
Uptime:                  0 hour 39 min 23 sec
Resyncs:                0 (since 11 Jan 2022 09:50:04)

Downstream Upstream
Line attenuation (dB):  33.9 0.0
Signal attenuation (dB): 33.9 0.0
Connection speed (kbps): 329991 49987
SNR margin (dB):        3.0 3.0
Power (dBm):            0.0 4.0
Interleave depth:       
INP:                    540.00 535.00
G.INP:                  Not enabled Not enabled
Vectoring status:        Unknown

RSCorr/RS (%):          0.0011 0.0028
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                0 0

============================================================================
    xDSL Training Status:   Showtime
                    Mode:   G.fast Annex A
            Traffic Type:   PTM Mode
             Link Uptime:   0 day: 0 hour: 39 minutes
============================================================================
       xDSL Port Details       Upstream         Downstream
               Line Rate:     50.487 Mbps      330.994 Mbps
    Actual Net Data Rate:     49.987 Mbps      329.991 Mbps
          Trellis Coding:         ON                ON
              SNR Margin:        3.0 dB            3.0 dB
            Actual Delay:          0 ms              0 ms
          Transmit Power:        4.0 dBm           0.0 dBm
           Receive Power:        4.7 dBm           3.0 dBm
              Actual INP:      535.0 symbols     540.0 symbols
Attainable Net Data Rate:     51.478 Mbps      331.871 Mbps
============================================================================



[attachment deleted by admin]

[underzone]

Great result, a big improvement! 

[tubaman]

Excellent outcome.
Now please try to just use it and not keep looking at the stats!
 

[adslmax]

Many thanks. The engineer told me G.fast always up and down automatically but the speed are minimum guarantee of 150Meg above. He even asked me why you not using Openreach Gfast Modem as I told him I need spare socket for the lamp to put there at night time in the hallway overnight. I told him Gfast router are fine.

I better stop looking at the stats now. No more stats. 

Until May, downgraded to FTTC 80/20 because of money budget (living cost are going up)