In reply to a post by dazb73:

I connected the macbook to the HH3 using ethernet and got 73 DL and 15 UL that was using the speedtester site from BT.

Great!

And that Macbook is Wireless N.

But doesn't tell us if your neighbours have flooded the area with wireless signals that stop you getting the higher speeds.

Ethernet is the only way when testing, unless you live in the middle of nowhere (and wouldn't have FTTC then!).

My experience of BT support has been to talk dumb to them, but remain reasonable. Ironically for me, they're excessively intent on calling me back, even while I'm sleeping (got a callback at 1am yesterday after reporting a fault at 00:45).

In my case they didn't ask me to reset my router or modem at all, when I first called it was to get DLM reset and remove interleaving on my line. They didn't really quite get what I was asking for and just took it as a low speed enquiry, asked me to do a speedtest on speedtester.bt.com

Them: "What was the result"
Me: "10 mbps"
Them: "What does it say for IP profile?"
Me: "Unable to determine IP profile for your line"
Them: "OK we'll send an engineer, what time suits?"

Engineer arrived, was an extremely helpful and well trained guy (as per all Openreach engineers I've had) and fixed the problem in about 5 minutes.

Do you have any older wireless G devices connected? They tend to pull down the whole wifi connection down to their level.

The default HH3 setting is 802.11 b/g/n (Recommended)- if you change this to 802.11 n 40 MHz you should notice an improvement. To change, go to http://192.168.1.254/ and log in to your router. Go to Settings>Advanced Settings and click on "Continue to Advanced Settings". Click on Wireless, then change the Wireless interface type as above.

In reply to a post by adrian109:

After all the tests passed they wouldn't put me through to the "level 2" department as they said:

1) my download speed is within acceptable speed range for my line
2) BT Infinity doesn't get capped like ADSL so there is no cap to remove (IP Profile)

Not sure whether number 2) is correct or not - am so confused.

So basically on Infinity they won't sent out an engineer to my property to reset the DLM / sync speed / IP Profile.

Should I get a second opinion??

2) is certainly incorrect.

Like I said, it was somewhat simpler for me, but there's a few things you could do:

1) Make your download speed outside acceptable limits. Reset your modem 50 times in a row, and DLM will probably cap you to 5mbps. Call again.

2) Disconnect modem. Pretend you didn't and it's faulty. Call again. They'll book an engineer pretty quick.

3) Give up and wait until DLM determines your line is stable, and increases your speed by itself.

When I tried this, it took over 4 weeks, and is still getting there (fault occurred 25th April). Cap gradually started increasing from about 10 days afterwards and has increased from 47mbps up to 74mbps out of the full 80. I expect it'll be restored to 80 within the next week, making 5 weeks total (!).

Edited by deleted (Fri 18-May-12 19:11:20)

In relation to other wireless devices Jaggiers yes i have a Toshiba laptop which is a/b also my PS3 which is G. I have done 2 more tests on speedtester and i got 74 Meg on both test which were also wireless. I curremtly dont have the Toshiba Laptop switched on but even when i do the maximum i get is about !2 meg DL because of it not being N. I will go into the Router settings and try what you said. Ive just gone into the Homehub setting to change to what you said to 40 hz but it said it wasnt compatable so ive left it on 8.02 n.

Edited by deleted (Fri 18-May-12 22:37:20)

It was worth a try - I've got one wireless G laptop connecting here which still connects OK when the router is set to N only as per my last post.

5 weeks!!! that's totally unacceptable did they give you are reduction for that period? Why must they use DLM? There should be an option to disable it altogether, but the BT Retail will not do that,why because it acts as an automated way of capping sync and that must be in someway to their advantage

In reply to a post by tommy45:

5 weeks!!! that's totally unacceptable did they give you are reduction for that period? Why must they use DLM? There should be an option to disable it altogether, but the BT Retail will not do that,why because it acts as an automated way of capping sync and that must be in someway to their advantage

Surely you've read the DLM on FTTC is quite different to that on ADSL. Its managed by OpenReach's DSLAM equipment which none of the ISPs have any control over - even Sky and TalkTalk who don't use the WBC network have to have this DLM. I suspect only areas such as Digital Region that have non OpenReach fibre can avoid this.

Oh - and why they use DLM ? I asked this years ago and people on thinkbroadband said that its needed for the wholesale networks of any provider that sells service to third parties. They need to be able to select a speed to transit over the wholesale link, not just "up/down as it feels like it".

Edited by jchamier (Sat 19-May-12 20:15:28)

In reply to a post by tommy45:

5 weeks!!! that's totally unacceptable did they give you are reduction for that period? Why must they use DLM? There should be an option to disable it altogether, but the BT Retail will not do that,why because it acts as an automated way of capping sync and that must be in someway to their advantage

I know, it's unbelievable.

My experience is totally different.