In reply to a post by WWWombat:

Graph fails to load here.

Strange, seems to be fine from work. Anyway there's nothing much to see, just a flat graph with a few spikes courtesy of my Samknows box.

OK - back to the original state then.

I wonder how a profile mismatch can cause this kind of symptom (ie low level packet queues and delays) with the sort of regularity you've seen.

I can't imagine that the profile has anything to do with L2 routing within the BT network, but perhaps they pointed you via a strange node, or backup leg.

In reply to a post by WWWombat:

I wonder how a profile mismatch can cause this kind of symptom (ie low level packet queues and delays) with the sort of regularity you've seen.

I can't imagine that the profile has anything to do with L2 routing within the BT network, but perhaps they pointed you via a strange node, or backup leg.

It sounds odd to me as well. I was a bit surprised that it was fixed after yesterday's login but looking back it seems that the August session also cleared on the 22nd. So whether it had anything to do with that or not I don't know.

Meanwhile it appears my laptop has decided that it doesn't want to support PPPoE. No idea what was going on there. I just tried to use the existing network connectoid and all it did was jam the hard drive light on and slow the machine to the point where it locked up. I don't think it ever actually established a connection.

I forgot I hadn't updated this thread. Well - the news was that June came and went and my connection has been fine. There has been one change though. I'm now using a different router. The only problem with that as an explanation is that I have previously eliminated the router as a cause by showing that the fault exists when my laptop is handling PPPoE.

But on the face of it it does look like my old wnr1000 might have been the cause. But what could it have been doing that created a fault that lasted four or five days and survived the router being powered off (for over 20 minutes) and a different device (latop) handling login? The fault even persisted on a temporary login that my ISP gave me.

Weird.

Well here's a thing - I've been contacted by someone who's seeing the same thing on PN:

http://community.plus.net/forum/index.php/topic,1193...

Interestingly in discussions with him here it seems he has the same router that I used to use. It's definitely looking like the router is a key component. It makes sense on one level - the fact that the modem never blinked - but there's still the fact that it takes several days before the fault goes away.

Edited by Andrue (Sun 27-Oct-13 18:53:33)

Hi All,
Well, a Bt man came this morning, as arranged, and tested out the line. He tested the sync speed and got about 73Mb. But could see that when we did a BTW speed test, the data transfer rate was only around 30 to 35Mb. Exactly as I had found, and confirming Plusnets own tests.
He wasn't aware of any scheduled events at the excahnge that happened every 2 months and was basically stumped.

We decided to try a new BT Homehub4 and an ECI based modem that he had on the van, in place of my Netgear WNR1000 router and Huwai modem, this gave a speedtest result of 71Mb! So for completeness, we then put my Netgear back on with the ECI modem, and again got nearly 70Mb. Finally with my router and original modem the speed was 63Mb. i.e. everything working like it should!

Once before in one of the previous slow downs, (when it is only a day away from the fault fixing itself on the first of the month)
I had rebooted modem and router and resolved the problem. But if I try and do that a day or so after the fault first appears, then it won't fix it. So I'm not entirely sure if putting a new modem on was the cure or not.

What I intend to do, is source a different router and leave that on for the next possible occurence, which should be December 18/19th, then if the problem doesn't happen, put the Netgear back on again and see if the fault comes back in February.
This should prove one way or the other if the Netgear is somehow responsible.

As the Netgear WNR1000 was issued by Plusnet as part of the original FTTC trials, i wonder if any of the other trialists had speed problems and just changed out the router at the first occurence, and so had not seen it would happen every 2 months??

Ah, the Kevin that Andrue linked to . That was a bit confusing at first . I thought Andrue had a new nick for some reason.

Certainly a vey weird fault.

Well, the 18th/19th has come and gone, and my speed is still solid at 59Mb according to SamKnows.
To see if the Netgear router is definitely the culprit, I'm going to put it back on in the New Year and wait for Feb 18th.
If it does cause a slow, I'll then know for certain *what*, but I still won't have a clue *why*!

In reply to a post by WWWombat:

Graph fails to load here.

Same here.