In reply to a post by Rockh:

In reply to a post by zebedeee:

In reply to a post by Rockh:

Yep a faulty filter or lead. Your profile should sort itself out and you should get the max sync of 8128.
It is possible that the info BT got from the DSLAM cause the checker info to be incorrect.

Not necessarily. It could also be a faulty faceplate. The OP's best bet would be to purchase a filtered faceplate. I'd recommend the ADSL Nation XTE-2005 which should rule out both the filter and the faceplate. In rare occurrences, a line fault can be made worse by fitting a microfilter to the line.

The OP said they were using the test socket hence my comment about a faulty filter / lead since they got a large improvement by using a BT - RJ11 lead.

Yes, but to get at the test socket, he would have had to remove the faceplate, and faceplate plugs (the ones that go into the test socket, when you plug the faceplate in) have been known to corrode. I have had an instance where a fault was caused by the faceplate base (which BT have to change), which is why I suggested it. Since the OP was looking for a new microfilter, the obvious answer (to me) was to fit a filtered faceplate, and the best one of those (IMHO) is an XTE-2005.

In reply to a post by harta:

At the moment i am not using any kind of microfilter, i am just plugged streight into the test socket directly from my router. Is this ok as long i dont want to use a phone?

Is it strange to see the acceptable range of speeds as 600-7150 Kbps from the bt ip profile test page? it just seems like quite a wide range.

No problem using the TEST socket full time.
As for the 'acceptable' range - yep, that's how things work

Thanks for the replies again folks.

Just to confirm. The faceplate is removed at the moment and has been for prob about a month and half. Its only the other day though i removed the micro filter so that only the router was plugged directly into the test socket and this is when the sync speed shot up.

Just to update everyone on my current stats..........here are the router stats....

ADSL Link Downstream Upstream
Connection Speed 7904 kbps 448 kbps
Line Attenuation 21 db 5 db
Noise Margin 14 db 28 db

http://test.speedtester.bt.com/ ......................results
Download speedachieved during the test was - 1640 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :7904 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 6500 Kbps


Anyone any ideas on any possible reasons why the data throughput speed is not near the ipprofile speed?


When speedtester.bt.com reports.....................................
For your connection, the acceptable range of speeds is 600-7150 Kbps.
they cant seriously mean any speed within this wide range is acceptable service standards?


Anyone any ideas on the kinds of things i can get 2nd line tech support at tiscali to ask bt to do?

Thanks again everyone

...Anyone any ideas on any possible reasons why the data throughput speed is not near the ipprofile speed?

With it being Tiscali, it's almost certain that it's due to congestion somewhere on Tiscali's system - in other words, they don't have/not willing to spend, on the resources required to support the customer base that they have.

This means that the resources they've got is shared between the customers.

The other possible, is congestion at your exchange which is designed to support up to 50 customers per connection.

Tiscali do not have a very good reputation, personally I would ask for my MAC and migrate elsewhere.

After a bit more reading, i wonder if this could be a low MSR?.

I'll ask tiscali to confirm what the msr is.

Can i tiscali get bt to reset the MSR? Would this involve going through a whole 10 day training/ stabilisation period.

It could be some of my leads have always been faulty and when i first moved in and got the tiscali braodband sorted then the msr was set low because my internal wiring at the time was faulty which would affect line speeds.

Now I have my internal wiring sorted and get a sync speed of 7904 am i right to think the line would benefit from going through a new stabilization period thus hopefully increasing the MSR?

From http://www.dslzoneuk.net/adslmax_explained.php (reformatted)

Maximum Stable Rate: The MSR is the lowest SYNC rate that your modem has connected at during the first 10 days of your line being connected to the ADSL Max service.

Fault Threshold Rate: The FTR is the speed below which a fault can be reported to BT Wholesale via your ISP. It is set to 30% lower than the MSR.

Personally I doubt that BT take any account of the MSR/FTR anymore. It used to be said that they'd investigate if the line rate fell beneath the FTR.

but the whole maxdsl configuration requires the MSR to be set doesnt it? this therefore dictates maximum data throughput speeds that can be gained i believe?

When i first connected with tiscali at this current address (a few years ago) i was only syncing at around 2000. therefore the MSR will have been set around this level.

But I can constantly get a sync speed of nearly 8000. Therefore i believe the line would benefit from having the MSR reset thus allowing a higher MSR to be set.

Does MSR affect actual data throughput speed or is ijust used to set the FTR which specifies the point at which btw will investigate line problems?

Not quiet. The only point of the MSR is in determining the FTR. The MSR could be 1000kbps during the training period. Later, if your line improved, your modem could sync at 8128kbps and your BT profile could be 7150kbps and you could be downloading at those high speeds.

Is it strange to see the acceptable range of speeds as 600-7150 Kbps?

No, the original spec for MaxDSL said 400k was the minimum acceptable throughput, as per a 2M line, so it has gone up a bit since then.

The ADSLnation XF-1e has a good reputation as a microfilter.