Curiosity about speeds

[#1]

Assuming you are using a Plusnet TG585 router visit this router admin page..

[#2]

Cheers dude
Here is all the info it gave me..
Link Information

Uptime: 0 days, 22:36:31
DSL Type: G.992.3 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 888 / 2,692
Bandwidth (Up/Down) [kbps/kbps]: 440 / 2,808
Data Transferred (Sent/Received) [MB/GB]: 170.50 / 1.54
Output Power (Up/Down) [dBm]: 12.5 / 18.0
Line Attenuation (Up/Down) [dB]: 29.0 / 52.5
SN Margin (Up/Down) [dB]: 21.5 / 10.0
Vendor ID (Local/Remote): TMMB / IFTN
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 131,073 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 196,606 / 0
FEC Errors (Up/Down): 762 / 21,814
CRC Errors (Up/Down): 54 / 147
HEC Errors (Up/Down): 35 / 473

[#3]

OK - those figures are useful.
Your downstream attenuation (52.5dB) shows that you're a fair distance from your exchange, and you're never going to get blazingly fast speeds - at least not until your cabinet gets FTTC. Go to http://www.kitz.co.uk/adsl/max_speed_calc.php to see what you might get under ideal conditions. It looks like a real throughput of around something over 3Mbps would be the best you can hope for (based on an IP profile of 3500).
At the moment the DSL type of G.992.3 indicates that you're on ADSL2 rather than ADSL2+ (G.992.5) - in theory that's not quite as fast, but in practice (at your distance from the exchange) it probably doesn't make much difference. Your downstream noise (SN) margin of 10dB is high, and it explains why you're not getting the fastest sync speed possible. The throughput of your last speed test (1.95Mbps down)  is consistent with an IP profile of 2000, which is correct for your current sync speed of 2808. You're right at the top end of the 2000 band - just a little bit faster and your profile would be 2500. See http://www.kitz.co.uk/adsl/IPprofile.htm for details.
Your current speed may well improve during the training period. It's frustrating to have to wait, but at the moment I'd say leave things as they are and check your router stats from time to time to see if your sync speed and SN margin change - but note that they can get better or worse, especially early on in the training period. If your line remains stable (which it might, as it sounds like a fault's recently been fixed) things should improve.
Graham

[#4]

Thanks for your input graham. I will wait and see what happens.  4.5 looks like my max possible according to kitz calculations

[#5]

No that's your max sync speed which will give an IP profile of 3500 and this will be your maximum throughput minus overheads so don't expect to see speeds faster than 3200 on speed tests.

[#6]

I'm learning 

[#7]

Matt suggested restarting the router around lunchtime (when the SN (noise) Margin is likely to be highest) to see what sync speed you get then. It might be above 2848kbps which would (after 2 or 3 days) lead to your IP Profile increasing to 2500kbps. Better but hopefully more can be achieved.
Please post your router stats (as in your reply #31) shortly after restarting. The SN Margin then should be around your target noise margin (probably 9dB but possibly as high as 12dB).
When restarting the router it is best to disconnect from Plusnet first (click the "Disconnect" button on the router's Home page. Then switch off, wait a few seconds and switch on again, or display Systen Information and click "Restart my Thomson Gateway" under Pick a task. After the router restarts you will have to reconnect again via the Home page.
Note: speed tests will show no improvement until your IP Profile (and Plusnet's Current line speed) increase.

[#8]

Guess i'll get back to this tomorrow, hopefully with good results
Edit for typo.

[#9]

Less errors, same speed, worse sn.
Link Information

Uptime: 0 days, 0:36:41
DSL Type: G.992.3 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 888 / 3,036
Bandwidth (Up/Down) [kbps/kbps]: 440 / 2,872
Data Transferred (Sent/Received) [MB/MB]: 1.10 / 9.93
Output Power (Up/Down) [dBm]: 12.5 / 18.0
Line Attenuation (Up/Down) [dB]: 29.0 / 52.5
SN Margin (Up/Down) [dB]: 21.0 / 12.0
Vendor ID (Local/Remote): TMMB / IFTN
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 0 / 0
FEC Errors (Up/Down): 20 / 103
CRC Errors (Up/Down): 32 / 0
HEC Errors (Up/Down): 7 / 0

[#10]

Actually I think those stats are encouraging. The sync speed 2872kbps has exceeded the threshold for a 2500kbps IP Profile and that should filter through within 3 days, increasing speed test results by 500kbps. Your target SN Margin is obviously a high 12dB, but there should be scope for the DLM to reduce that to 9dB and possibly the normal value of 6dB if it sees a stable connection with acceptable error rates.
My suggestion is to leave it to the DLM for the moment.

[#11]

I will wait for now. Are bt estimates utter rubbish then?  Their wholesale tells me i should be getting between 6 and 12 (probably 7) on adsl2 +.  Should i push for adsl2+ as i am on adsl2?  Although grahams advice seems to be that it won't make that much difference.
Also, would the fact that i'm using an old GPO socket make much difference?

[#12]

You are already connected on ADSL2+, it's just that your router is either configured or has automatically selected the ADSL2 setting (G.992.3). If your router is set to automatic, try forcing it to G.992.5, which is ADSL2+.
If you don't know how to do that, let us know the make/model of your router, and someone should be able to point you in the right direction.

[#13]

I have no idea how to do that
Router is Thompson TG585. Thanks for any help in advance.

[#14]

Your router will be configured to use Multimode, and would use ADSL2+ if the higher frequencies (1.1MHz to 2.2MHz) introduced with that protocol would contribute anything to downstream data transfer on your connection.
The reason these higher frequencies don't work is due to attenuation at their frequencies being too high - the modem can't distinguish signal from noise at these frequencies. This is a normal physical characteristic of longer lines - not a fault.
If you are keen to monitor noise margin variation with time and check bit loading (which is what the previous paragraphs relate to) you could install RouterStats (the full version). Select the ST585 v6, v7 login option, this works with the TG585v8. For configuring and capturing graphs I suggest you follow the recommendations in this post.

[#15]

That looks interesting, i'll take a look