Loss of speed.

My speeds have been rock solid around the 12\13 Mbps, but last day or so have nose dived to less than 1 Mbps, any advise would be much appreciated, router stats are:
Upstream..1156 kbps
Downstream..17720 kbps
SNR margin..upstream....5.8db
SNR margin downstream...0.2kbps
Line attenuation...Upstream.. 10.4db
Line attenuation...Downstream..22.0

Latest test result....Down...0.19 Mbps Up...0.98Mbps.
Incidentally piggybacking off next door gives me 4.98Mbps down.

http://www.speedtest.net/result/4340484486.png

Edited by deleted (Wed 06-May-15 08:48:14)

Firstly, forget the results from your neighbour. Its more than possible they have a different connection to the exchange, or are even on a different cabinet.

Is your phoneline working? No noise/interference?

Are you on an extension? If you are, move the router to the master socket, and if possible reveal the test socket and plug in there. See if its your internal wiring causing the issues.

After that is done, call the Tech Support guys, they can run phoneline checks etc that might show an issue.

Downstream..17720 kbps indicates that the line is still performing ok.

Are you using wireless to the router? Test with a wired connection to see if that helps. Try changing channels.

Could be an issue in the router. Reboot it.

Could be something silly has happened at the Plusnet end that is artificially limiting things. Ring their service (as the other poster suggested).

See what result you get from this test and continue on to get the further diagnostics test (tab at bottom of page) completed:

http://speedtest.btwholesale.com/


Login to the/your PN portal and see what the line speed reported is:

https://portal.plus.net/my.html?action=data_transfer...

Hello azrael316,

Thank you for your reply, test result connected directly into test socket, as you can see, no improvement.

[IMG]http://www.speedtest.net/result/4340600505.png[/IMG]

Stephen Todd,
Changed channel,
Tested with RJ45, same result.

Apprentice,

Bt speedtest, no change,

Plusnet report..
Estimated line speed:
There's no speed estimate currently held on your account.
Current line speed:
0.2 Mb

Get onto PN Support.

It might be something as simple as a messed up profile, but then again it might be something more serious.

Unusual for things to just drop speed like that.

Thank you, will do, appreciate your replies.

Errors on the line, apparently.

Edited by deleted (Wed 06-May-15 10:43:30)

When you did the BTw test and completed the diagnostics part what was the stated IP profile for the connection?

Download speed was 0.19Mbps and IP profile 13.85Mbps
Upload speed was 0.35 and IP profile 0.83

Those IP profiles are very close to what I normally attain.

Edited by deleted (Wed 06-May-15 17:18:40)

In reply to a post by tarren:

Download speed was 0.19Mbps and IP profile 13.85Mbps
Upload speed was 0.35 and IP profile 0.83

Those IP profiles are very close to what I normally attain.

The line speed reported in the PN portal is restricting the throughput speed as the reported IP profile from the BTw test above was 13.85Mbps,

Plusnet report..
Estimated line speed:
There's no speed estimate currently held on your account.
Current line speed:
0.2 Mb

The PN line speed profile held by PN should in theory get updated within 24hours once the delta report comes through.
I can't remember whether this can be adjusted manually by PN staff before an update, maybe not, but others might know.

Edit
Of course something must have happened to the connection in the way of a resync to have occured for the PN portal to have that 0.2Mbps line speed recorded.

Edited by Apprentice (Wed 06-May-15 18:08:30)

The normal helpline people can reset the Current line speed in seconds.

Thanks for that Bob.

This from Plusnet yesterday evening,

Ive arranged for the line to be reset to try and fix this. The reset normally takes 4 hours to complete. After 4 hours your router will need to be powered off for 10 seconds and then turned back on. When it reconnects wed expect the speed to be normal again, but it can take 24 hours before everything fully updates.

No difference this am. Will let you know how things progress.

Thank you for your input, appreciated.

So, it will either be faulty filters/equipment or a line fault then.

Strange that the Support bod jumped to an SNR reset so quickly.

I dont think it will fix it tbh.

There is something causing the drop, and just resetting the SNR is unlikely to be a long term fix.

Ummmm.

I'm not sure a line reset is needed. Your IP Profile and sync appear not too bad:-

In reply to a post by tarren:

Download speed was 0.19Mbps and IP profile 13.85Mbps
Upload speed was 0.35 and IP profile 0.83

Those IP profiles are very close to what I normally attain.

The "Current line speed" held on your account at Plusnet is what needed resetting, a simple task carried out in seconds, as I said.

The line reset may improve the sync a little, or it may lower it a little. However, the result should be an auto-update of the "Current line speed" within a few hours of it.

Unless I'm missing something...

Downstream..17720 kbps
SNR margin downstream...0.2kbps

The downstream SNRM is waaay too low. My old ADSL2+ line would grind to a halt when the SNRM tried to synch at 3db. It should normally be 6db.

Are you tweaking your line? If not, a reboot of the router *should* have it try and negotiate at 6db again.

Gentlemen, I've renewed all cabling, including a new filter, all as supplied by BT. what more can I do, same results by the way.

What I did when I had the 3db issue, was have Zen "lock me" onto a 6db profile. Whatever the line conditions, I'd synch at 6db.

So more chances of getting disconnected on a bad line, but I knew my line was pretty stable (as it was trying to negotiate to 3db).

Right, you have done as much as you can.

Time to raise a fault with PN, although now they have done the SNR reset faults wont touch it for 10 days. Which is why it was a last resort when I worked there.

Go through to support and kick off.

Andypandy, Tweaking my line, wouldn't know where to begin. Was told by Plus yesterday to reboot after 4 hours, nothing, so I did it again this afternoon, same old results I'm afraid.

Hi azrael316 have raised a ticket, they must be getting fed up of me, my Caller ID has also failed to come out to play, it never rains but it pours.

What is the current line speed reported in the PN portal when you login just now?

https://portal.plus.net/my.html?action=data_transfer...

With the failiure of your CID too, Im begining to think this smells very much like a line issue.

Estimated line speed:
There's no speed estimate currently held on your account.
Current line speed:
0.2 Mb

At last a result, thank you all who contributed.

[IMG]http://www.speedtest.net/result/4346283699.png[/IMG]

That's good, when you've logged into the PN potal has the current line speed reported changed too?

https://portal.plus.net/my.html?action=data_transfer...

It must be greater than the speed test result. Barring domestic buffering issues.

Apprentice, line speed getting back to something like,

Estimated line speed:
There's no speed estimate currently held on your account.
Current line speed:
13 Mb

Good, fingers crossed it stays that way

Its good news that your service has got back to normal.
But with not much help from Plusnet's flawed 'Current Line Speed' restriction which crippled your line after the event which caused the speed to drop and then held it down despite a BT ip profile of 13Mb and a normal sync speed of 17Mb.

I too get this from time to time and Plusnet are quick to react to a delta report and move the current line speed down immediately but then always take three whole days before moving it back up again.

It is the one reason that I am thinking of moving away from PN to an ISP who does not unnecessarily limit the line speed to below what the sync speed allows and then take three days to put it back up again.

Mine doesn't take three days to adjust upwards. It does so within a few hours, just like the downward moves.

In reply to a post by jaba:

I too get this from time to time and Plusnet are quick to react to a delta report and move the current line speed down immediately but then always take three whole days before moving it back up again.

The automatic changes are just that, Automatic...

THe ony time there is someone actually changing it is when a customer makes them aware. Otherwise, its all down to the vagaries of the OR systems and the wonders of DLM...

PlusNet mirrors the IP profile and is known to sometimes miss the change reports and so the wrong value is held in their rate limiting copy.

Quite true, it is rare it gets missed though, in my experience that is.

I only ever had to change IP profiles a few times a month.

Seems to work well on my account except - for some reason - the PPP drop isn't initiated so I need to do it manually

Are you on FTTC Jim?

It could be that on a re-sync the modems are reconnecting before the PPP session timeout occurs. Openreach warn about this in SIN 498, or at least they used to, and that CPs need to adjust their parameters.

It's possible that although it appears Plusnet have done that yours may still be below the new threshold.

nope - ADSL and it seems to be more or less limited to my connection given that I haven't seen it reported as a general problem