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  • FIRST POST
    • J B
    • By J B 13th Jun 18, 8:53 PM
    • 3,347Posts
    • 1,218Thanks
    J B
    Router keeps losing internet connection
    • #1
    • 13th Jun 18, 8:53 PM
    Router keeps losing internet connection 13th Jun 18 at 8:53 PM
    We swapped from Plusnet to John Lewis about 3 months ago (this may be purely coincidental)


    Since then we keep losing the internet connection.


    Android phone has the wi-fi icon with an exclamation mark.
    Laptop has the wi-fi icon in the notification area but with the yellow mark saying 'connected to Sagemcom - no internet)


    A simple reboot rectifies the problem, but it's really annoying!


    We have tried the old Plusnet router and a new JL (Sagemcom) one.


    We have replaced the filtered faceplate.


    We have tried using different wi-fi channels ... all to no avail!


    Has anyone got any bright ideas?
Page 4
    • GunJack
    • By GunJack 11th Oct 18, 11:41 AM
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    GunJack
    8 - Maximum data rate: 484/992

    9 - Noise margin: 8.3/7.3

    10 - Line attenuation: 28.1/53.5

    Your line attenuation has risen post-fix (not good, means reduced max speed) and your snrm hasn't had time to settle yet - if the line's stable DLM can take up to a couple of weeks to settle down, so it's a bit early, unfortunately, to try and force the issue.

    Patience and lots of monitoring line stats over the next couple of weeks....
    ......Gettin' There, Wherever There is......
    • J B
    • By J B 12th Oct 18, 9:31 AM
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    J B
    8 - Maximum data rate: 484/992

    9 - Noise margin: 8.3/7.3

    10 - Line attenuation: 28.1/53.5

    Your line attenuation has risen post-fix (not good, means reduced max speed) and your snrm hasn't had time to settle yet - if the line's stable DLM can take up to a couple of weeks to settle down, so it's a bit early, unfortunately, to try and force the issue.

    Patience and lots of monitoring line stats over the next couple of weeks....
    Originally posted by GunJack

    Many thanks, but these are the stats from 25th Sept ....



    I have asked JL to send an OR engineer to 'mend it' - is that going to be a waste of time?


    We are away from home till Monday, so can't test again.
    • AndyPix
    • By AndyPix 12th Oct 18, 11:27 AM
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    AndyPix
    20 MHz WPS enabled
    Originally posted by J B

    Side note : Disable WPS
    Running with scissors since 1978
    • J B
    • By J B 12th Oct 18, 6:21 PM
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    J B
    JL Just phoned.
    Because we are below their minimum guaranteed speed of 1.5, they are sending a 'broadband engineer' on Monday ...


    Watch this space!
    • J B
    • By J B 16th Oct 18, 8:49 PM
    • 3,347 Posts
    • 1,218 Thanks
    J B
    JL Just phoned.
    Because we are below their minimum guaranteed speed of 1.5, they are sending a 'broadband engineer' on Monday ...


    Watch this space!
    Originally posted by J B

    Monday now swapped to Thursday!
    • J B
    • By J B 21st Oct 18, 3:12 PM
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    J B
    Monday now swapped to Thursday!
    Originally posted by J B
    ... which was then changed to Saturday.


    Guy came and seemed to want me to go to FTTP (coz that's what he does mainly )
    FTTC is not available here - too far from exchange I reckon.


    Anyway - speed has risen to about 1.5 meg which is about half of what we were getting a month ago


    Router stats here ...



    5 - Mode ADSL

    6 - Uptime: 1 days 05:33:05

    7 - Data rate: 368/1583

    8 - Maximum data rate: 576/1556

    9 - Noise margin: 8.3/8.5

    10 - Line attenuation: 25.1/50.0

    12 - Data sent/received: 2.0G/1.8G
    • J B
    • By J B 16th Nov 18, 7:27 AM
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    J B
    Sorry - dragging this up again.


    Same OR guy came yesterday banging on about being too far from the exchange, best he can do, FTTP is the way forward (I told him I had a quote for 16K!!!)


    Then, he lowered the SNR from 9 to 6 and the speed seems better.


    Having stumbled on with 1Mbps for about 6 weeks now, we are back to the dizzy heights of 2.5


    Router stats


    7 - Data rate: 420/2857

    8 - Maximum data rate: 780/2840

    9 - Noise margin: 4.9/5.3

    10 - Line attenuation: 24.9/49.5

    12 - Data sent/received: 101.2M/1.3G


    Will this be OK, or will it fall over eventually?
    • DoaM
    • By DoaM 16th Nov 18, 7:50 AM
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    DoaM
    6dB is standard SNRM ... lower SNRM = higher speeds, at the potential expense of line stability.

    When I was with BE (several years ago, before Sky bought them) I used to get 17-18 meg on 6dB ... I could tune it down to 3dB and reach 21 meg but the stability was a bit of an issue. (Theoretical max on ADSL2+ is 24 meg).
    Diary of a madman
    Walk the line again today
    Entries of confusion
    Dear diary, I'm here to stay
    • J B
    • By J B 16th Nov 18, 8:55 AM
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    J B
    (Theoretical max on ADSL2+ is 24 meg).
    Originally posted by DoaM

    Our 'guaranteed' minimum is 1.5, but we are over 2 miles from the exchange
    • GunJack
    • By GunJack 16th Nov 18, 8:59 AM
    • 10,608 Posts
    • 7,944 Thanks
    GunJack
    6dB is standard SNRM ... lower SNRM = higher speeds, at the potential expense of line stability.

    When I was with BE (several years ago, before Sky bought them) I used to get 17-18 meg on 6dB ... I could tune it down to 3dB and reach 21 meg but the stability was a bit of an issue. (Theoretical max on ADSL2+ is 24 meg).
    Originally posted by DoaM
    Agree with this - I ran my (very stable) ADSL line for years at 2.5dB, squeezed 6.5 meg out of a 48dB line

    JB - you need to see how stable the line is now, fingers crossed it lasts...
    ......Gettin' There, Wherever There is......
    • J B
    • By J B 16th Nov 18, 9:39 PM
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    J B
    Latest router stats - looks like the snr has dropped, has it?


    6 - Uptime: 1 days 13:41:47

    7 - Data rate: 420/2857

    8 - Maximum data rate: 780/2428

    9 - Noise margin: 4.3/3.4

    10 - Line attenuation: 24.9/49.5
    • GunJack
    • By GunJack 17th Nov 18, 11:20 AM
    • 10,608 Posts
    • 7,944 Thanks
    GunJack
    Latest router stats - looks like the snr has dropped, has it?


    6 - Uptime: 1 days 13:41:47

    7 - Data rate: 420/2857

    8 - Maximum data rate: 780/2428

    9 - Noise margin: 4.3/3.4

    10 - Line attenuation: 24.9/49.5
    Originally posted by J B
    Yes, it has....BTOR were trialling 3dB profiles a while back, so what you're seeing may not be an indication of instability - to the contrary, it could be a good sign....keep monitoring it
    ......Gettin' There, Wherever There is......
    • J B
    • By J B 17th Nov 18, 1:56 PM
    • 3,347 Posts
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    J B
    ...keep monitoring it
    Originally posted by GunJack

    7 - Data rate: 420/2857

    8 - Maximum data rate: 780/2972


    9 - Noise margin: 4.6/5.7



    10 - Line attenuation: 24.9/49.5
    • J B
    • By J B 18th Nov 18, 8:47 AM
    • 3,347 Posts
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    J B
    No internet this morning


    6 - Uptime: -
    7 - Data rate: 420/2857
    8 - Maximum data rate: 780/2196
    9 - Noise margin: 4.8/1.9
    10 - Line attenuation: 24.9/49.5
    12 - Data sent/received: 7.5K/100.2K


    Rebooted the router and seems fine ...



    6 - Uptime: 0 days 00:00:32
    7 - Data rate: 420/2805
    8 - Maximum data rate: 776/3028
    9 - Noise margin: 4.0/6.1
    10 - Line attenuation: 24.8/49.5
    12 - Data sent/received: 87.9K/350.0K


    • DoaM
    • By DoaM 18th Nov 18, 10:38 AM
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    DoaM
    That might be why you were on a 9dB target SNRM previously - sacrificing speed for stability. If you want the higher speed then you'll just have to accept that you may lose the connection occasionally.
    Diary of a madman
    Walk the line again today
    Entries of confusion
    Dear diary, I'm here to stay
    • J B
    • By J B 18th Nov 18, 10:48 AM
    • 3,347 Posts
    • 1,218 Thanks
    J B
    That might be why you were on a 9dB target SNRM previously - sacrificing speed for stability. If you want the higher speed then you'll just have to accept that you may lose the connection occasionally.
    Originally posted by DoaM

    Yes, but two months ago we managed to 'stabilise' at about 3Mbps but then had a crackle on the line which has messed everything up ever since!
    • GunJack
    • By GunJack 18th Nov 18, 12:09 PM
    • 10,608 Posts
    • 7,944 Thanks
    GunJack
    Yes, but two months ago we managed to 'stabilise' at about 3Mbps but then had a crackle on the line which has messed everything up ever since!
    Originally posted by J B
    You've still got an intermittent line issue there...always the worst type of fault to find and rectify properly....get back onto your ISP. When OR guy comes round next, be sure to tell him about the initial problem and subsequent issues, with speeds etc.
    ......Gettin' There, Wherever There is......
    • J B
    • By J B 18th Nov 18, 8:37 PM
    • 3,347 Posts
    • 1,218 Thanks
    J B
    You've still got an intermittent line issue there...always the worst type of fault to find and rectify properly....get back onto your ISP. When OR guy comes round next, be sure to tell him about the initial problem and subsequent issues, with speeds etc.
    Originally posted by GunJack

    Will certainly contact ISP, but we need a 'broadband engineer' and I'm not sure how many there are in our town.
    Sadly the one who has been both times thinks that we are too far from the exchange to get decent speed ... despite me telling me that we've been reasonably content with our 2.5Mbps over the last 8/10 years!!!

    You know the situation ... someone who is obviously better qualified to fix the problem than me, but won't listen to what I tell him, because he knows better!!!
    • J B
    • By J B 26th Dec 18, 7:53 PM
    • 3,347 Posts
    • 1,218 Thanks
    J B
    Conclusion here ....


    https://forums.moneysavingexpert.com/showpost.php?p=75231985&postcount=11
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