Router Stats since ADSL2

[#1]

Since moving onto ADSL2 my synch speed seems to be a lot higher but the downstream margin seems to be up and down all the time sometimes dropping to 1db
see below
DSL Status: Connected
DSL Modulation Mode: ADSL2
DSL Path Mode: Interleaved
Downstream Rate: 3369 kbps
Upstream Rate: 444 kbps
Downstream Margin: 3 db
Upstream Margin: 18 db
Downstream Line Attenuation: 58 db
Upstream Line Attenuation: 16 db
Downstream Transmit Power: 12 db
Upstream Transmit Power: 17 db
Is there anything i can do to improve this ? as even with the higher synch it doesnt seem much quicker
Or do i just need to put up with BT and the poor signal you get if you dont actually live in the exchange 

[#2]

Is your downstream line attenuation figure of 58db about right for the distance to the exchange? Because your upstream line attenuation of only 16db seems low for 58db downstream - I have about 58db down and 31db up. 58db = 4.2km according to kitz.

[#3]

Not sure what it should be but connection does seem to be a bit up and down
dick:quote

[#4]

If you put your phone number and postcode into Kitz's ADSL Checker here how far does that give as distance by road from your exchange? Distance by road is often a good indicator of line length.

[#5]

Hi mojorisin,
A quick test shows upstream attenuation to be 32dB, which is more like it. your sync is 3369 because the SNR is 1dB. I've raised your profile to 2900 to allow a bit extra speed but I wouldn't be too surprised to see it drop a little bit when the SNR increases, as I'm not sure that is sustainable.
Jojo

[#6]

Hi Jojo Thanks for that is does seem to be a bit up and down and that sych is one of my higher ones but it does seem to drop quite a bit and even though my profile is showing 2.5mb it doesnt seem any quicker in fact feels more sluggish to open pages
dick:quote

[#7]

Quote from: spraxyt

If you put your phone number and postcode into Kitz's ADSL Checker here how far does that give as distance by road from your exchange? Distance by road is often a good indicator of line length.

By Road: 4.51 km

[#8]

DSL Status: Connected
DSL Modulation Mode: ADSL2
DSL Path Mode: Interleaved
Downstream Rate: 3369 kbps
Upstream Rate: 444 kbps
Downstream Margin: 1 db
Upstream Margin: 18 db
Downstream Line Attenuation: 58 db
Upstream Line Attenuation: 16 db
Downstream Transmit Power: 12 db
Upstream Transmit Power: 17 db

Date Download Speed Upload Speed
Yesterday 22:11 1498 kbps (187kB/s) 330 kbps (41.3kB/s) Share
Wednesday 00:20 2151 kbps (269kB/s) 350 kbps (43.8kB/s) Share
Mar 8, 00:14 2061 kbps (258kB/s) 330 kbps (41.3kB/s)

speeds are all over the place even though my profile is 2.5mb

[#9]

Today 23:07 1501 kbps (188kB/s) 348 kbps (43.5kB/s) Share
Today 23:06 1702 kbps (213kB/s) 321 kbps (40.1kB/s) Share
Today 23:06 1406 kbps (176kB/s) 339 kbps (42.4kB/s) Share
Today 23:02 2346 kbps (293kB/s) 347 kbps (43.4kB/s) Share
Today 23:02 2326 kbps (291kB/s) 347 kbps (43.4kB/s) Share
Yesterday 22:11 1498 kbps (187kB/s) 330 kbps (41.3kB/s) Share
Wednesday 00:20 2151 kbps (269kB/s) 350 kbps (43.8kB/s) Share
Mar 8, 00:14 2061 kbps (258kB/s) 330 kbps (41.3kB/s) Share
Mar 7, 08:39 2351 kbps (294kB/s) 347 kbps (43.4kB/s) Share
Feb 28, 07:29 1832 kbps (229kB/s) 331 kbps (41.4kB/s) Share
Feb 28, 07:29 1731 kbps (216kB/s) 346 kbps (43.3kB/s) Share
Feb 28, 07:28 1916 kbps (240kB/s) 329 kbps (41.1kB/s) Share
Feb 26, 20:38 2664 kbps (333kB/s) 176 kbps (22kB/s) Share
Feb 25, 17:07 2154 kbps (269kB/s) 192 kbps (24kB/s) Share
Feb 25, 17:01 1988 kbps (249kB/s) 263 kbps (32.9kB/s) Share
Feb 20, 20:38 2296 kbps (287kB/s) 322 kbps (40.3kB/s) Share
Feb 17, 01:05 2238 kbps (280kB/s) 352 kbps (44kB/s) Share
Feb 14, 00:19 2236 kbps (280kB/s) 190 kbps (23.8kB/s) Share
Feb 7, 20:11 2351 kbps (294kB/s) 350 kbps (43.8kB/s) Share
Feb 5, 12:17 2358 kbps (295kB/s) 350 kbps (43.8kB/s) Share
Feb 1, 21:38 2163 kbps (270kB/s) 349 kbps (43.6kB/s)

[#10]

A downstream attenuation of 58dB implies a line length of about 4.2km which ties in with your distance by road from the exchange.
Kitz's calculator predicts a sync speed (downstream rate) of 3200kbps with 6dB noise margin on ADSL2. Your sync speed is slightly higher than that but downstream noise margin is only 1dB. Something is amiss somewhere and it has already been mentioned that the upstream attenuation is not being reported correctly.
Do you have a different  router you could try?

[#11]

I would need to buy another do you think a new one would make a difference ? currently have a Linksys WAG200G
dick:quote

[#12]

Obviously buying a new router is worthwhile if your present one is faulty. However if it isn't faulty then the purchase is unnecessary.
I think the way forward is to raise a low speed fault at http://faults.plus.net. Part of that process will ask you to try a different router which you won't be able to do. In this case you can only continue anyway and add a note that you don't have a spare router to try.
When the faults team check your line if they think a router fault is the most likely cause of the problem they may offer to lend you one for diagnostic purposes.

[#13]

Ok I have bought a new router Netgear DGN2200 model and upgraded to the lastest firmware
stats are
ADSL Link               Downstream               Upstream
Connection Speed 3058 kbps                 444 kbps
Line Attenuation           60.5 db                         35.5 db
Noise Margin           3.4 db                         19.5 db
still roughly the same fluctuations as the old router on the noise margin
any ideas ?

[#14]

Can you hear any audible noise on your line when using the phone?

[#15]

Phone seems to be fine, Get the feeling this is down to the line as every 3 to 4 months there seemed to be a problem with the internet and phone dropping then having to wait on BT and there "we cant be bothered for 3 working days" rule to kick in before fixing it
Although getting a higher synch since moving to ADSL2+ the noise margin downstream seems to fluctuate quite wildly sometimes going to zero as if the line is synching at a speed it can handle