A 2Wire 2700 HGV BT Business Hub Router Wireless

[LesD]

Thanks for the replies Guys. 

Maybe if I could get back to where I was with a Noise Margin of 12 dB I should content myself.
At the moment it is sitting there at 16 dB as it does pretty much all the time during daylight hours.

I have emailed support with all the information I could muster and am waiting for a reply but it's non-urgent so they can take their time from my point of view.

[Rik]

It's what I'd do, Les. 

[LesD]

Just an update. 

IDnet were very helpful and got BT to reset my target noise margin to 9 DB. 

For almost 3 great days I was synching at over 4500 kbps, typically 4800 kbps, the best ever. 
At around 5 PM, before the dreaded onset of darkness on the third day, something unknown caused the noise margin to go back up to 15 dB and that was that. I am currently synching at 3744 kbps with an IP Profile of 3000 kbps as before.

So my hopes of improvement were not to be.

[Sebby]

This is where BT's systems are extremely frustrating. Unfortunately, BT will now say that because the ATM has put it up to 15dB again, that's where the line is stable.

[Glenn]

Just an update. 

IDnet were very helpful and got BT to reset my target noise margin to 9 DB. 

For almost 3 great days I was synching at over 4500 kbps, typically 4800 kbps, the best ever. 
At around 5 PM, before the dreaded onset of darkness on the third day, something unknown caused the noise margin to go back up to 15 dB and that was that. I am currently synching at 3744 kbps with an IP Profile of 3000 kbps as before.

So my hopes of improvement were not to be.

Les, I'll swap your line with mine 

Edit: Sorted quote

[LesD]

This is where BT's systems are extremely frustrating. Unfortunately, BT will now say that because the ATM has put it up to 15dB again, that's where the line is stable.

Despite some long stable spells since way back in September last year with sync speeds just below 3500 kbps (and an IP Proflie of 2500 kbps max to boot!) BT have kept my Noise Margin at 15 dB! 

So much for any continual reviewing and adjustment process! 

At 12 dB I used to be able to sycn well over 4000 kbps and get download throughput of just under 3500 kbps but alas no more.
BT's arrogant, heavy handed we know best attitude has scuppered this completly! 


This is what miffs me here are my stats at circa 9:30 PM. The Noise Margin is still 11 dB! OK down from 15 dB in the daylight hours but still way high.

DSL                    Down  Up
Current Rate:  3456 kbs   448 kbs 
Max Rate:      3456 kbs   1060 kbs 
Current Connection:
Current Noise Margin:   11.0 dB   25.0 dB 
Current Attenuation:    40.2 dB   26.0 dB 
Current Output Power:  18.9 dBm   11.9 dBm 

[Sebby]

It might be worth having a word with IDNet, Les. Sometimes, they can convince BT to reset it.

[kinmel]

Idnet had to get BT to reset my SNR back down four times in a month before it settled at 6dB again

[Sebby]

I'm surprised they were willing to do it 4 times, Alan.

[Rik]

Or even once!

[Sebby]

Indeed!

[g7pkf]

Hmm i wish BT could "lock" the snr.

i know i have a noisy line (coz of a certain virgin) i know i would get drop outs.

but from experiance it would be 3-6 a week if they locked it at 9dB, 1 a week at 12 and 30+ at 6dB.

i would live with 1 (and get a 4500 profile)

oh well such is life, Bloody Twits cannot do it as it's "an adaptive line", we only do 2meg fixed.

[kinmel]

I'm surprised they were willing to do it 4 times, Alan.

Just asked very nicely  and Idnet lived up to it's reputation and persuaded them 

[Rik]

You should see Miriam in action with the field telephone.  8)

[Ross]

Hi All,

I had a little play with a 2700HGV (new version) to see what benefits I would have over my current Draytek 2820N router.

I have a pretty cr*ppy line really, although downstream noise is in the high 40's, I rarely get sync over 2272 and my target snr is 12 afaik.
The 2700 seems pretty stone age in terms of features (compared to the draytek), but I thought I would give it a try as my employer pays for all my equipment.... R&D 

It's all up and running, sync was marginally better. So we will see how that goes over the coming weeks. I may get IDnet->BT to lower target SNR.

My questions is one of MTU. The 2700 router is set to 1500, but the speedguide.net test reports a lesser figure of 1460. My laptop is configured correctly and if I run the same test on the same machine at work, I get an MTU of 1500.

Is there something I need to change on the 2700?

Thanks in advance.

[Rik]

No, it's something that happens with Speedguide.net, Ross. I suspect that the routing to their server has a choke on it at some point, reducing the effective MTU to that site.

[Ross]

Many Thanks!

[Steve]

If you  "ping -f -l 1472 www.google.co.uk "          you should get no packet fragmemtation indicating MTU can be set to 1500

[David]

I recently changed my router as couldnt change some details reinstated my spare netgear and my speeds have fallen so later will try and change the ip address again this time not being plugged in I will follow Alans guide and hopefully it can be used again.

Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 6144 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 5000 kbps
    Actual IP throughput achieved during the test was - 4673 kbps

My usual speed is higher than this so hope this will give me back the speed I am used to would my profile have changed though ?

[Rik]

That profile is correct for the sync speed, David, throughput is about right for the profile.

[David]

Ok look at these though 

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation.  All rights reserved.

C:\Users\David>ping idnet.net

Pinging idnet.net [212.69.36.10] with 32 bytes of data:
Reply from 212.69.36.10: bytes=32 time=40ms TTL=59
Reply from 212.69.36.10: bytes=32 time=40ms TTL=59
Reply from 212.69.36.10: bytes=32 time=40ms TTL=59
Reply from 212.69.36.10: bytes=32 time=40ms TTL=59

Ping statistics for 212.69.36.10:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 40ms, Maximum = 40ms, Average = 40ms

C:\Users\David>

[Rik]

Try a re-boot.

[David]

 




You sure you missed me Rik ?

[Rik]

Of course. 

[David]

We all have our cross to bear and you drew the short straw