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Author Topic: 24% Drop in Sync Speed, Can Anyone Advise?  (Read 12160 times)

NEXUS2345

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #15 on: September 20, 2016, 04:36:56 PM »

Could you give us a look at the QLN and HLOG plots (you should be able to enable collection in settings)? Also, are you uploading to MyDslWebStats?
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Dray

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #16 on: September 20, 2016, 04:55:58 PM »

The ISP has identified a fault. I'm not sure what else you need?
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whatkatedoes

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #17 on: September 20, 2016, 06:15:39 PM »

Could you give us a look at the QLN and HLOG plots (you should be able to enable collection in settings)? Also, are you uploading to MyDslWebStats?

Yes, I'm k8bit on mydslstats - set it up today.

However, I popped next door, checked their router, was connected 40/6, with a max of.. 40.  She turns it off when not in use(!) - and when did the same whilst I was there.. my own attainable leapt back to 57.

:(
« Last Edit: September 20, 2016, 06:50:07 PM by whatkatedoes »
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whatkatedoes

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #18 on: September 20, 2016, 06:38:31 PM »



« Last Edit: September 20, 2016, 07:22:04 PM by whatkatedoes »
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roseway

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #19 on: September 20, 2016, 07:13:31 PM »

Unfortunately those graphs don't show the whole tone range. If you look under the graphs in DSLstats you'll see sliders labelled Compress ... Expand. You can adjust these to show as much of the tone range as you want, and it's usually best to show all the used tones.
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  Eric

whatkatedoes

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #20 on: September 20, 2016, 07:22:23 PM »

Unfortunately those graphs don't show the whole tone range. If you look under the graphs in DSLstats you'll see sliders labelled Compress ... Expand. You can adjust these to show as much of the tone range as you want, and it's usually best to show all the used tones.

Thanks - I've updated the images above, hopefully this is correct now?
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roseway

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #21 on: September 20, 2016, 07:33:25 PM »

Yes thanks, that's good.
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  Eric

j0hn

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #22 on: September 20, 2016, 11:12:21 PM »

Yes, I'm k8bit on mydslstats - set it up today.

However, I popped next door, checked their router, was connected 40/6, with a max of.. 40.  She turns it off when not in use(!) - and when did the same whilst I was there.. my own attainable leapt back to 57.

:(
you just worked it out for yourself right there. That neighbour is your big crosstalker. cont urself lucky they turn their modem off. OR probably won't do a pair swap because of a crosstalk issue.
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S.Stephenson

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #23 on: September 21, 2016, 01:08:19 PM »

I reboot my modem to catch higher sync rates so my noise margin always sits around 4db and I'd probably be happy with it around 2/3db.

As they turn the modem off when not in use just reboot your modem while theirs is off.
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whatkatedoes

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #24 on: September 21, 2016, 10:56:40 PM »

I reboot my modem to catch higher sync rates so my noise margin always sits around 4db and I'd probably be happy with it around 2/3db.

As they turn the modem off when not in use just reboot your modem while theirs is off.

Problem with that is mine will lose sync when they switch on, this can happen at not great times, lol.

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j0hn

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #25 on: September 22, 2016, 12:57:12 AM »

if the snrm drop is so high it's causing a resync every time, and 42 just didn't cut it, you could try somewhere in the middle. perhaps connect when the crosstalker isn't online, but limit the sync speed to say 50mb rather than 55mb. this might be enough to hold the connection steady when your neighbour connects.
It's not the full 55mb, but it's better than 42mb. If you don't know the command to limit the sync speed on your modem then just tell us which modem you use. The command is different for different modems.
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whatkatedoes

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #26 on: September 22, 2016, 07:07:11 AM »

Thanks :) it's a Billion 8800NL. 

Noticing the the attainable was up again (ergo neighbor likely switching router off overnight) this morning (as I type) I rebooted the router, and am connected at 55, with an attainable of 58.9.
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j0hn

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #27 on: September 22, 2016, 08:20:03 AM »

adsl configure --maxDataRate 50000 10000 100000
you can send it through DslStats as shown in pic
this will cause a resync and sync at a max of 50 down, 10 up
it saves for every subsequent resync till you reboot the modem
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whatkatedoes

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #28 on: September 22, 2016, 09:39:01 AM »

Wow, Thanks - I'll let you know how I get on :)

Kate
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Dray

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Re: 24% Drop in Sync Speed, Can Anyone Advise?
« Reply #29 on: September 22, 2016, 09:42:35 AM »

Or you could get an Openreach technician to fix the fault
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