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[Ian1261]

Hi there

Thanks for your replies, got home today my router had reconnected about 6 hours ago at 3584, so I thought I would see if the 1.7mb had improved yet - it was at 2.9mb!!! Well pleased! I wonder if that will be the case later today? I may invest in a Thomson in the hope it will hold onto those evening 'lows' and keep my profile up!

Ian

[Ian1261]

Ah well unfortunately not! Ordered a router will wait and see what happens when I get that. Incidently, I had a call yesterday from BT who asked if there was any improvement!?? after the engineer had been. I asked him how there could be as he had done nothing! The chappy from BT said he would get my profile reset? I asked what he meant and he said I would have to go through the optimization again! How that is going to help I have no idea but hey, I have had enough of trying to get someone to understand a simple  -  It was fine BEFORE you changed me from max to fixed and back again to max! It isn't rocket science something MUST be different ther end as I have exhausted all possible things (aside from the router) my end!

Ian

[roseway]

Frustrating, isn't it? Maybe the Speedtouch router will be more stable on your line, in which case resetting your profile might get you a better result.

[Ezzer]

with reference to crc errors, crc are the most critical closeley followed by hec errors, rs can stand a lot more.

When I do a test I tend to run it for 5 mins, in that period of time for non interleaved 0-30 crc/hec errors are not unusual. once this creeps into 3 figures it becomes a problem above say 200-400 then your lucky to retain sync & dispite any quoted spped, you'll notice thing seem slower because the system is constantly going "what was that can you repeat that bit."
Interleaved errors seem to become an issue once they reach 4 figures & rs errors ok up to 10,000-14,000

The analogy I use is it's like reading a document with spelling & punctuation errors. the odd few, no problem. too many the document becomes illegible & you're constantly rereading bits. izzz ya vit lihke your spoolchucker ez goon a vit kwazy

[mr_chris]

Nicely explained, ezzer - useful to know some thresholds for whats considered 'good' and 'bad'

izzz ya vit lihke your spoolchucker ez goon a vit kwazy

[kitz]

indeed -

thanks for the explanation - good analogy too 

[MikeS]

Thanks for that Ezzer, my error numbers fall into the OK category, so I guess I need not worry too much.  I was sent a 2wire  BT1800HG to try by Plus Net.  It syncs at about the same rate at the Speedtouch but shows a more spikey SNR trace.  (see attached) Overall I think it is a little less stable and has poorer control over SNR flucuations than the Speedtouch, but no where near as bad as that of the SAR600EH.  Both the Speedtouch and the 2Wire drop connection in the 1-2dB region whereas the SAR would not drop until -3dB.  Irritatingly the Speedtouch when it does drop seems to hold the dsl signal but drop the PPPoa connection which results in an idle timeout error and needs a software reboot to regain it, whereas the 2Wire simply resyncs. 

Plus Net have offered to call in a specialist REIN engineer, of which there are evidently only about a hundred in the country, and I think I'm going to take up their offer.  Even if the interference turns out to be out of anyones control, at least I now feel that my line is now much more useable with the Speedtouch or 2wire.  I have been operating at a IP profile of 3000 for a week or so now, whereas previously the best I got was 1500 and then only for a day or so.  Looking back it was a pity that all the routers I tried were AR7's, although at the time this wasn't an issue. 

Thanks to everybody for their help.

[attachment deleted by admin]

[kitz]

I was sent a 2wire  BT1800HG to try by Plus Net.

Full marks to the ISP for that one, 
I dont think Ive ever seen an ISP actually sending out a different chipset router to try before.
Recommend the user try to source one yes - but not actually send one out which  I presume is on loan?
Since PN dont by default ship out 2wires - it would appear who ever is dealing with your case really is doing all they can to help.

It syncs at about the same rate at the Speedtouch but shows a more spikey SNR trace.  (see attached) Overall I think it is a little less stable and has poorer control over SNR flucuations than the Speedtouch, but no where near as bad as that of the SAR600EH.  Both the Speedtouch and the 2Wire drop connection in the 1-2dB region whereas the SAR would not drop until -3dB.  Irritatingly the Speedtouch when it does drop seems to hold the dsl signal but drop the PPPoa connection which results in an idle timeout error and needs a software reboot to regain it, whereas the 2Wire simply resyncs.

Thanks for your mini-review between the different routers

Plus Net have offered to call in a specialist REIN engineer, of which there are evidently only about a hundred in the country,

Excellent news please let us know how it goes.
Once again credit to the agent dealing with your case for actually acknowledging that this is a problem for you.
All too often most of the big ISPs wouldnt either know what REIN nor an AR7 chipset is and you'd be stuck with your problem.

[MikeS]

They (PlusNet) have been helpful).  I've had several phone calls from them, a large number of emails, plus the router.  I have been with them for a number of years, intially they were very good,  then they went downhill, inertia kept me with them really, but more recently they seemed to have got their act together.

[guest]

Full marks to the ISP for that one, 
I dont think Ive ever seen an ISP actually sending out a different chipset router to try before.

AAISP are the only others that I know who will send you out another router to "try before you buy". They're not exactly a "normal" ISP though

Well done to Plusnet (for once ).

[Ian1261]

  THANKYOU THANKYOU THANKYOU THANKYOU    To all of you who have offered invaluble advice to me.

I got myself a speedtouch 585, set it up and after a bit of messing about trying the router stats on that one and comparing to my netgear router I found that the speedtouch connected with a 15db margin whereas the netgear only 12db. Both fluctuated up and down at the peak periods but the thompson stayed connected where the netgear still kept dropping. So I decided the Thompson was the way to go. Connected at 3488kbps and that was 3 days ago (at 1.30pm today) and it is still connected!!! Hooray!! No drops (yet!). Keeping everything crossed it stays that way.  I now have the 3000kbps profile back that I had before everything went t1ts up!

The margin stays pretty much stable with little or no drops during most of the day and all night at 15db, drops down to about 10db between 7 and 8 in the mornings and around 5 to 11 evenings when it will fluctuate between about 13db and 9db, occasionally dropping to 6db. Is that pretty much par for the course?

I have listed the errors below over the 3 day up time (hooray again!), are they par for the course also? Couldn't get that info with the netgear!

Error Seconds (Local/Remote): 2,247 / 0
 
FEC Errors (Up/Down): 0 / 0
 
CRC Errors (Up/Down): 0 / 135,268
 
HEC Errors (Up/Down): 0 / 46,716

I have read other posts about the setting of the margin, and from that I am guessing that if my connection stays stable for a while my margin would be reduced and thus possibly increase the connection and in turn my profile? Mind you I don't care now if it doesn't as long as it stays connected!

So THANKS again to you helpful people out there. Keep it up. You are appreciated! 

Ian

By the way did I say THANKS?  THANKS, THANKS AND THANKS AGAIN!

[roseway]

 

That's great news.

[kitz]

Brilliant news

Thanks for letting us know.

[b4dger]

Another 585 success!
Glad it worked out for you...

PS. Looking at your errors (i.e. no FEC's) it doesn't look as if you have Interleaving turned on.
For a line like yours I think this would also help. Might be worth asking your ISP to turn it on for you (this isn't normally a problem) - the affect will be to make your line more stable (at the slight cost of your ping response).

Just a thought.

[Ian1261]

Would slower ping response mean slower speed/profile?
Ian