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Standard User lockyatlrg
(fountain of knowledge) Mon 15-Dec-14 14:22:21
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Slight drop in sync


[link to this post]
 
I have enjoyed solid 80mb sync for the last 3 years 80001 down and 19999 up (only few meters from the cab)

But on the 8th of this month it's dropped to 79996 down and still 19999 up. I know you're going to say big deal. But I'm just wondering what would have caused the change? Still on fast path and nothing else seems different. I just don't want it to be the start of any issues coming my way.

The Modem is an ECI one.

Ignore my sig it's old and from my old house laugh

BT Infinity
ROUTER:-Netgear WNDR37AV
JDSU Stats
Attainable 105977D 38659U
Sync 79999D 20000U
Attenuation: 5.4 SNR: Down 13.1 Up 24.3
Line Length 160meters

Edited by lockyatlrg (Mon 15-Dec-14 14:23:00)

Standard User RobertoS
(elder) Mon 15-Dec-14 14:49:44
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Re: Slight drop in sync


[re: lockyatlrg] [link to this post]
 
Probably a tiny amount of cumulative cross-talk from one or more newer connections.

Assuming you have an unlocked modem you may find the Attainable has dropped more than that.

My broadband basic info/help site - www.robertos.me.uk | Domains,site and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 57.1/14.8Mbps @ 600m. - IPv4BQM IPv6BQM

"Angels can fly because they can take themselves lightly." - G K Chesterton.

Edited by RobertoS (Mon 15-Dec-14 14:51:40)

Standard User lockyatlrg
(fountain of knowledge) Mon 15-Dec-14 17:32:21
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Re: Slight drop in sync


[re: RobertoS] [link to this post]
 
I just put my unlocked 612 back on to check stats and they are pretty much the same as it was a year ago. just a 0.3 difference in down SNR - strange? Firmware upgrade with the dslam or modem?

BT Infinity
ROUTER:-Netgear WNDR37AV
JDSU Stats
Attainable 105977D 38659U
Sync 79999D 20000U
Attenuation: 5.4 SNR: Down 13.1 Up 24.3
Line Length 160meters


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Standard User MHC
(sensei) Mon 15-Dec-14 18:45:30
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Re: Slight drop in sync


[re: lockyatlrg] [link to this post]
 
Sorry, it was me turning on an electric motor!

That change in sync speed or SNR really is minor and there are so many things which could cause it. Some might be transient, others might be there permanently and vary over time. Examples: another user on the cabinet, or a user turning their device on, a component failing or changing characteristic in your modem, contact resistance on the cable from socket to modem, a street light, a French radio station, your fridge, the factory down the road, atmospheric temperature, a car driving over the cable duct, time of day, rain or dry, sun spot, and many many more...


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User lockyatlrg
(fountain of knowledge) Mon 15-Dec-14 18:50:52
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Re: Slight drop in sync


[re: MHC] [link to this post]
 
Thanks for the sarcastic comment...

I was just interested in what it might be? not that it affects anything. Sorry for asking a question.

BT Infinity
ROUTER:-Netgear WNDR37AV
JDSU Stats
Attainable 105977D 38659U
Sync 79999D 20000U
Attenuation: 5.4 SNR: Down 13.1 Up 24.3
Line Length 160meters
Standard User RobertoS
(elder) Mon 15-Dec-14 19:01:09
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Re: Slight drop in sync


[re: lockyatlrg] [link to this post]
 
So what are the Max and Bearer lines' figures?

My broadband basic info/help site - www.robertos.me.uk | Domains,site and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 57.1/14.8Mbps @ 600m. - IPv4BQM IPv6BQM

"Angels can fly because they can take themselves lightly." - G K Chesterton.
Standard User MHC
(sensei) Mon 15-Dec-14 19:39:12
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Re: Slight drop in sync


[re: lockyatlrg] [link to this post]
 
If I was really being totally sarcastic, I would not have given the list of examples. The point being that the change is minute and almost anything can cause it - even someone several miles away turning on an electric motor.

My SNR can vary by 3 or 4 dB over a day and a change of 0.3 can happen in minutes.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User lockyatlrg
(fountain of knowledge) Mon 15-Dec-14 20:03:40
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Re: Slight drop in sync


[re: MHC] [link to this post]
 
I don't think it's anything to do with SNR or attainable rate. My attainable rate is still @ 97mb ish which is was a year ago.

BT Infinity
ROUTER:-Netgear WNDR37AV
JDSU Stats
Attainable 105977D 38659U
Sync 79999D 20000U
Attenuation: 5.4 SNR: Down 13.1 Up 24.3
Line Length 160meters
Standard User lockyatlrg
(fountain of knowledge) Mon 15-Dec-14 20:04:12
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Re: Slight drop in sync


[re: RobertoS] [link to this post]
 
Just explain a little what they are?

BT Infinity
ROUTER:-Netgear WNDR37AV
JDSU Stats
Attainable 105977D 38659U
Sync 79999D 20000U
Attenuation: 5.4 SNR: Down 13.1 Up 24.3
Line Length 160meters
Standard User RobertoS
(elder) Mon 15-Dec-14 21:18:41
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Re: Slight drop in sync


[re: lockyatlrg] [link to this post]
 
When you telnet into the HG612 they are near the top of the response to xdslcmd info --show

My broadband basic info/help site - www.robertos.me.uk | Domains,site and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 57.1/14.8Mbps @ 600m. - IPv4BQM IPv6BQM

"Angels can fly because they can take themselves lightly." - G K Chesterton.
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