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Standard User IceCream
(newbie) Fri 04-Mar-11 00:00:21
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ADSL2+ "Output Power" & decrease in speed


[link to this post]
 
At the beginning of the week I was moved over to ADSL2+ and since then my down speed has decreased from around 8032Kbps to 7682 Kbps and I have noticed that my "output power" is 0 dBm for downstream, is this normal? Line Attenuation has increased rather a lot from 40dB to 44.5dB, isn't that a higher than usual jump that you usually get when you change to ADSL2+? Connection just does not seem to be in a good state right now!

Here are my line stats:

Line Mode ADSL2+ Line State Show Time
Line Power State L0 Line Up Time 00:08:07:20
Line Coding Trellis On Line Up Count 1

Statistics Downstream Upstream
Line Rate 7682 Kbps 888 Kbps
Noise Margin 9.4 dB 10.0 dB
Line Attenuation 44.5 dB 23.9 dB
Output Power 0.0 dBm 13.0 dBm
MSGC (number in overhead channel data) 64 10
B (number of bytes in Mux Frame) 110 13
M (number of Mux Frames in FEC Frame) 1 8
T (Mux Frames over sync bytes) 2 9
R (number of check bytes in FEC Frame) 10 16
S (ratio of FEC over PMD Frame length) 0.4603 4.0000
L (number of bits in PMD Frame) 2103 256
D (interleaver depth) 64 8
Delay 7 msec 8 msec
Super Frames 1815013 1815011
Super Frame Errors 86 0
RS Words 254101934 15427593
RS Correctable Errors 55830 21
RS Uncorrectable Errors 1712 0
HEC Errors 78 0
OCD Errors 9 0
LCD Errors 0 0
ES Errors 0 0
Standard User XRaySpeX
(knowledge is power) Fri 04-Mar-11 00:21:21
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Re: ADSL2+ "Output Power" & decrease in speed


[re: IceCream] [link to this post]
 
You are about right for your attn.

Have you tried in test socket? Any phone extensions? Which ISP?

Maybe you need to wait for it to train.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU BB => 2010: Orange 16 Meg LLU BB
Standard User IceCream
(newbie) Fri 04-Mar-11 00:26:21
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Re: ADSL2+ "Output Power" & decrease in speed


[re: XRaySpeX] [link to this post]
 
Yeah it's about right for my attn but should the attn really have increased by 4.5dB when I moved to ADSL2+? I thought it was usually a max of 3dB increase? Surely it's not right I was getting better speed on ADSLMax? =(

No phone extensions, it's plugged in the master socket - a NTE5 adsl filtered faceplate.

ISP is Aquiss.


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Standard User XRaySpeX
(knowledge is power) Fri 04-Mar-11 00:36:42
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Re: ADSL2+ "Output Power" & decrease in speed


[re: IceCream] [link to this post]
 
In reply to a post by IceCream:
it's plugged in the master socket
But is it plugged into test socket behind faceplate? Just in case faceplate faulty,

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU BB => 2010: Orange 16 Meg LLU BB
Standard User IceCream
(newbie) Fri 04-Mar-11 00:49:39
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Re: ADSL2+ "Output Power" & decrease in speed


[re: XRaySpeX] [link to this post]
 
Nope, not behind the faceplate but I think it would be too much of a coincidence if it went wrong now! I will try it tomorrow though.

Any thoughts on it stating 0 on downstream output power?
Administrator MrSaffron
(staff) Fri 04-Mar-11 09:20:02
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Re: ADSL2+ "Output Power" & decrease in speed


[re: IceCream] [link to this post]
 
There is a clue as to why the speed has dropped - the number of errors going on.

Try forcing the modem to use JUST ADSL2 mode it may provide a more stable service.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User yarwell
(sensei) Fri 04-Mar-11 09:28:39
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Re: ADSL2+ "Output Power" & decrease in speed


[re: IceCream] [link to this post]
 
0 on downstream output power must be a problem with communications between the router and the DSLAM, probably a chipset interoperability issue. The same sort of thing that leads to no change in signal loss but an increase in the reported loss in some combinations.

Which ISP ?

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Are your kids pirates ? Limewire, Bearshare, Kazaa, BitTorrent, eMule are all tools of the trade.
Standard User IceCream
(newbie) Fri 04-Mar-11 11:52:05
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Re: ADSL2+ "Output Power" & decrease in speed


[re: MrSaffron] [link to this post]
 
Thanks MrSaffron, have just forced the ADSL2+ mode, will let you know if it makes any difference =)
Standard User IceCream
(newbie) Fri 04-Mar-11 11:53:29
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Re: ADSL2+ "Output Power" & decrease in speed


[re: yarwell] [link to this post]
 
yarwell, would it be worth getting a new router? I'm using an old Voyager 2110 that I've had for years with no problems before.

ISP is Aquiss.
Standard User yarwell
(sensei) Fri 04-Mar-11 12:32:44
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Re: ADSL2+ "Output Power" & decrease in speed


[re: IceCream] [link to this post]
 
is it an LLU service - not sure what Aquiss resell these days - if so try to find the router that gets on best with their LLU provder's kit.

At least try to get your voyager firmware up to date. http://www.voyager.bt.com/wireless_devices/voyager_2...

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Are your kids pirates ? Limewire, Bearshare, Kazaa, BitTorrent, eMule are all tools of the trade.
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