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[barnettgs]

Please see my attached file for line errors.  The connection has been only for 3 days and 15 hours, 30 minutes.

Does it look bad and how do you tell whatever it is good or bad?

[burakkucat]

Would you please clarify the ADSL type used on your circuit.

Seeing a reported US of 448 kbps makes me wonder if your circuit is still configured as G.992.1 (a.k.a. G.Dmt). 

[Weaver]

I'm looking at these number of errored seconds (ES) and severely errored seconds (SES) over that three day period. Zero of these would be better.

[Weaver]

The number HEC errors is not good, this indicates data corruption. All is not well. It's a long line, as shown by the high attenuation figure. I would suggest that the line needs sorting out. Should also look into configuration changes, better modem and physical improvements to see if any of these are options.

[barnettgs]

Thanks for the replies, I'm using TP-LINK W8960 router as a bridging modem to W8970 router (in Wi-Fi mode only) as it has a broadcom chipset which is ideal for long line. 

I used my BT Home Hub 4 but I found it too unstable for this line.

My telephone exchange is this: https://www.samknows.com/broadband/exchange/NIMM

This exchange does not have 21CN WBC which is probably why I can't have higher than 448 upload?  However, I think I'm on ADSL Max if it's of any help.

What about super frames or RS errors?

[Weaver]

Some types of ‘errors’ are detected and then corrected, handled successfully, so they do not represent an actual practical problem, although they do give you an insight into how much stress the modem is having to cope with and how much badness there is going on in the line.

The figures that I highlighted were those that show the error correction capabilities of the modem being overwhelmed, so they are going to represent data loss or serious performance loss.

[Weaver]

Since you are on ADSL Max you would need to pay extra for BTW ‘IPstream Max Premium’ to get faster upload, which your line would be able to deliver, I think.

My learned friends will be able to pitch in to offer more concrete suggestions, or alternatively, an expert aggressive ISP would be able to sort you out.

[barnettgs]

Ok the reason is that I currently have two broadband lines, both with BT. One is unlimited and one is 10 GB capped.  I use 2nd line to play Sensible Soccer online occasionally, taking part with online league etc but it always throws up strange things at online matches.

I believe that high error rate only started on both lines after the installation of 2nd line/broadband last December. When it was being installed, BT engineer said something about a fault on the line down the lane needs fixing and that broadband can not be activated until a few days later.  A few months later, BT engineer came and checked the line over and said it was all fine. Secondly, both sockets are masters and are next to each other and both have ADSL faceplate and both are connected to routers directly.  Only one of them is connected to a telephone, thats it.

I guess I should switch to cheaper ISP, seeing that it is not going to improve anyway. 

[burakkucat]

. . . both sockets are masters and are next to each other and both have ADSL faceplate and both are connected to routers directly.  Only one of them is connected to a telephone, thats it.

That is perfectly correct. You have two separate circuits. Each circuit requires its own NTE5 and filter -- in your case, each has a centralised filter.

[barnettgs]

Ok, there's nothing I could do I suppose? Aside from switching to cheaper ISP?

[burakkucat]

I'm not sure that would be of any use . . . other than to save some money.

You are in a similar situation to N*Star, exchange wise. NIHB and NIMM. In fact you have the advantage, as FTTP is available in some areas served by your exchange.

[Weaver]

There are certainly plenty of things that could be tried. A lot depends on what your aims are - better reliability or speed. I'm certain that a change of configuration would produce better reliability. A change of modem (to a known good specialist one) would be an experiment that might pay off or not. But if the line needs fixing, assuming that external noise is not a major part of the problem, then you will need to get that fix done and need an ISP that can push that through.

[aesmith]

Those stats don't look too bad to me assuming it's quite a long line.  Attenuation of 58.5dB suggests something just under 6km.   Looking just at ES you have around 2 per minute making an MTBE of 30 seconds.  That should give a line quality of Amber, meaning that BT doesn't feel the need to slow you don't, but won't speed up either.   Your current synch speed should give a 3.0meg profile, you'd need to get up to over 4000 (synch) to improve actual throughput.

[barnettgs]

Thanks, it isn't about speed as it was for online gaming, error-free line would be good.  For general internet & movie use, it is ok.

Although it is meant to be around 4.2 km by road but I find that some routers report different attenuations.