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Standard User Simon888
(regular) Sat 07-Dec-19 01:42:19
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Advice on greadually shlowing down speed


[link to this post]
 
Hey Guys,

Hope someone can help me here

I have noticed the past month or so my downlaod speed much slower than normal. Looked at the connection logs on the HH5

13:21:33, 06 Dec.19 DSL Link Up: Down Rate=66997Kbps, Up Rate=19999Kbps; SNR Margin Down=8.9dB, Up=6.5dB
01:06:00, 27 Nov.19 DSL Link Up: Down Rate=66997Kbps, Up Rate=19999Kbps; SNR Margin Down=8.9dB, Up=6.6dB
23:25:36, 16 Nov.19 DSL Link Up: Down Rate=66997Kbps, Up Rate=20000Kbps; SNR Margin Down=9.4dB, Up=6.3dB
23:15:28, 02 Nov.19 DSL Link Up: Down Rate=66997Kbps, Up Rate=19999Kbps; SNR Margin Down=9.1dB, Up=6.5dB
22:35:55, 01 Nov.19 DSL Link Up: Down Rate=66997Kbps, Up Rate=19999Kbps; SNR Margin Down=8.9dB, Up=6.6dB
03:31:27, 22 Oct.19 DSL Link Up: Down Rate=66997Kbps, Up Rate=19999Kbps; SNR Margin Down=9.0dB, Up=6.7dB
00:47:26, 20 Oct.19 DSL Link Up: Down Rate=73998Kbps, Up Rate=19999Kbps; SNR Margin Down=6.9dB, Up=6.7dB
21:40:36, 30 Aug.19 DSL Link Up: Down Rate=78255Kbps, Up Rate=19999Kbps; SNR Margin Down=6.5dB, Up=6.9dB
02:25:11, 08 Jul.19 DSL Link Up: Down Rate=77536Kbps, Up Rate=19999Kbps; SNR Margin Down=6.3dB, Up=6.8dB
21:29:23, 04 May.19 DSL Link Up: Down Rate=77903Kbps, Up Rate=19999Kbps; SNR Margin Down=6.3dB, Up=6.8dB
19:56:46, 19 Apr.19 DSL Link Up: Down Rate=78580Kbps, Up Rate=19999Kbps; SNR Margin Down=6.3dB, Up=6.9dB
16:54:45, 02 Aug.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=7.2dB, Up=7.1dB
10:21:05, 02 Aug.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=7.2dB, Up=7.1dB
08:09:15, 11 Jul.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=7.6dB, Up=7.1dB
07:50:08, 10 Jul.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=7.8dB, Up=15.0dB
14:06:32, 07 Jul.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=7.6dB, Up=7.1dB
06:05:48, 09 Apr.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=7.7dB, Up=7.1dB
03:30:11, 26 Mar.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=8.7dB, Up=15.1dB
09:40:07, 19 Mar.18 DSL Link Up: Down Rate=79999Kbps, Up Rate=19999Kbps; SNR Margin Down=8.4dB, Up=15.1dB

I had a smart meter installed around the date when things starter to get slower. I know they can interfeer with WiFi. But not the DLS connection? The main phone cable that comes into the house passes about a meter away from it.

I can never remember this SNR thing. Is higher better or worse. But looking at good times the downlaod SNR was around 6.3dB. But that has jumped to around 8 to 9dB now.

I did also install a new electric heater next to the master socket to repalce a night storage heater.

Could this increase of dB be electrical noise interferring or could it be the actual line?

Please advise

Thanks

Simon
Administrator MrSaffron
(staff) Sat 07-Dec-19 09:35:18
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Re: Advice on greadually shlowing down speed


[re: Simon888] [link to this post]
 
The way to know if electrical devices have caused a speed drop is to turn off the electrical devices, but given its winter that might not be ideal for a heater.

So yes the decrease in sync could be from the new appliances, or it could be from any number of other sources creating RF noise and/or cross talk in the cable bundles e.g. more people buying FTTC in the street

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Simon888
(regular) Wed 19-Feb-20 11:43:01
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Re: Advice on greadually shlowing down speed


[re: MrSaffron] [link to this post]
 
Hey Guys,

Just had a thought. If I re wire using shielded cable. and maybe plug router direct into the master socket test socket how does does it take for the syetems in the green cabinet to maybe increase the speed / inprove the "SNR Margin"?

Thanks
Simon


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Administrator MrSaffron
(staff) Wed 19-Feb-20 12:44:32
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Re: Advice on greadually shlowing down speed


[re: Simon888] [link to this post]
 
Could be a few days, likely a few weeks, could be months or never

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User shtu
(fountain of knowledge) Tue 25-Feb-20 11:14:43
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Re: Advice on greadually shlowing down speed


[re: Simon888] [link to this post]
 
Shielded cable is a bit of a misnomer here. Where would the shielding be earthed to? There's no earth on the master socket or the router, and without earthing the shielding is at best doing nothing, and at worst acting as an antenna.

No harm in trying a better-quality cable, but there's unlikely to be any practical difference.

Straight to test socket - unless you have extensions wired off the front part of the master, and you use a plug-in filter, I'd expect little-to-no difference, but again it's worth a try. The BT filtered faceplate gets results as good as any other method in my experience, so try one if you don't already use one.

The meter - tricky, as to remove it from suspicion would involve actually shutting off the meter, and I doubt that's possible. Quite apart from needing to disconnect the mains supply ahead of the meter, it probably has a battery backup in it.

The heater is where I'd be concentrating as you can actually do something with that. These usually have a simple bimetal thermostat across live, and arcing across those can happen. Unfortunately, the test there involves getting cold. smile

In reply to a post by MrSaffron:
the decrease in sync could be from the new appliances, or it could be from any number of other sources creating RF noise and/or cross talk in the cable bundles e.g. more people buying FTTC in the street


This is true. Any number of possible reasons, and some of them are outside your control.
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