It is possible (if in the process of rebooting and getting a new IP) your IP profile changes, you may well see an immediate change in speed.

What I am seeing (and many others are seeing) is massive changes in speed whilst having a constant (maximum) IP profile, simply caused by time of day.
Today I was getting maximum results from Speedtest.net before 5pm and down to one-seventh maximum speed after 5pm.

Hmmm ... that's not good.

But, it begs the question ... e.g. why am I not seeing it, but then why has my connection dropped to 0.5 megs on some occassions ... the IPP is still the same.
Uploads not affected. Will stay low until a reconnect ...

Wierd goings on methinks ...

Ropb

You could hack the modem and monitor the stats, as suggested here:

In reply to a post by Adsl24:

Just unlock it, it takes 2 minutes and does not affect anything.

http://huaweihg612hacking.files.wordpress.com/2011/1...

https://docs.google.com/#folders/0B6wW18mYskvBZDE0Ym...

Graphs are here http://forums.thinkbroadband.com/fibre/t/4120417-fib...

Edited by deleted (Sat 05-May-12 09:24:39)

This is how to contact the BT Customer care mods http://forums.thinkbroadband.com/bt/t/4120383-re-bt-...

Preamble...

I can confirm the low speed (of single threads) issue is absolutely not related to IP address.

Having noted my current speed (of an 80Mbps connection), again for single thread downloads, is ridiculously low (TBB speedtester comes out at around 3.5Mbps - but it generally gives me about half the result from the BT and other speedtesters - TBB test download files are also around 3.5Mbps), I tried your trick (even though I said I wouldn't - I was too interested to see if it worked) and rebooted the HH3.
I now have an IP address in the 86 range (instead of the 31 range) and download speeds are exactly the same (slower than my old 4.5Mbps ADSL2+ connection with BE).

BT speedtester currently giving a result of 8Mbps from my (no surprises) maximum IP profile of 77.43Mbps.
Speedtest.net is about the same.
Zero point doing the "last test required" on the BT tester as the only reason it's under performing is THEY are throttling.

BT's throttling is particularly bad this morning.
Even twenty threads via Usenet is not maxing out my line.
So, in order to prove the total throughput of my 77.43Mbps IP profile is where it should be (around 75Mbps - give or take) I now have twenty Usenet threads and twelve download manager threads going at the same time.
Guess what?... My total useable throughput is 74.6Mbps (according to TBBmeter).
This is made up of 33.3Mbps from the 12 download manager threads (downloading a TBB test file) - so just under 2Mbps per thread, and around 41Mbps from Usenet (just over 2Mbps per thread).

With the TBB download test completed, Usenet total has gone up to around 55Mbps (2.7Mbps per thread).

There honestly doesn't seem to be any point in ringing India (there's no way this will be on their script, so they'll probably tell me I need a new Home Hub, or something equally stupid).
There's also very little point BT_care (on here) getting involved, as I highly doubt they've got the authority to purchase additional transit capacity (be it on a national, exchange, or cabinet level), nor do I suspect they have the authority to switch off the throttling.

This really is down to BT (they need to spend some more money and buy sufficient capacity to actually carry the double speed they're rolling out).

Actual point...

I think your problem may well be the HH3 (especially if the download speed is down at 0.5Mbps, whilst the IP profile remains unchanged).
A reboot/reconnect may well kick-start the HH3. The fact you get a new IP [at the same time] is probably irrelevant. I suspect it's the act of rebooting the HH, rather than the reallocation of a new IP, which is temporarily fixing your problem.

For your problem, you may actually get a result from calling India (the need for a replacement Home Hub may well be on their script)...Good luck!

In reply to a post by BatBoy:

You could hack the modem and monitor the stats,

Certainly quicker than waiting for the BT speedtester to complete (at a speed of 0.5Mbps) and advise you of the IP profile .

Of course knowing the IP profile is of some help (only way to get this is from the BT speedtester) as it eliminates a dodgy profile as the cause of very slow speeds.
In my case I get anywhere between 2.5Mbps and 75Mbps (dependant on time of day) from a constant 77.43Mbps IP profile (never shifts from maximum).

In reply to a post by adebov:

There honestly doesn't seem to be any point in ringing India (there's no way this will be on their script, so they'll probably tell me I need a new Home Hub, or something equally stupid).

There's also very little point BT_care (on here) getting involved, as I highly doubt they've got the authority to purchase additional transit capacity (be it on a national, exchange, or cabinet level), nor do I suspect they have the authority to switch off the throttling.

Others have reported a successful resolution by ringing India to raise faults and also by Contacting BT Care as suggested.

If you don't raise it, how do you expect it to get resolved?

In reply to a post by BatBoy:

This is how to contact the BT Customer care mods http://forums.thinkbroadband.com/bt/t/4120383-re-bt-...

They actually can help (certainly more so than calling India - which is, inevitably, a total waste of time).
BT_care helped me out, when Openreach totally screwed up my original Infinity order (back in August last year, when OR made a total mess of provisioning a new line, with broadband - apparently that's one of the most difficult things to get out of BT, mainly because they seem largly incapable of provisioning a line and broadband at the same time...they - either BT retail, or BT OR, forgot the broadband order).

BT_care made sure the original order was totally cancelled and money refunded (the idiots over the phone - presumably India - were completely useless and I was starting to get bills from a line which wasn't even connected - trying to get the script jockeys to understand I shouldn't have to pay line rental, for a line which was never connected, seemed to be impossible - how hard is it to understand you shouldn't have to pay for a service they never installed - how stupid do you have to be, not to understand this).

In reply to a post by BatBoy:

If you don't raise it, how do you expect it to get resolved?

Have you ever managed to get an ISP to switch off their throttling by calling their contact centre?

It has to be throttling.
How else do you explain 75Mbps download speeds out of peak hours and 2.5 to 8Mbps speeds during peak hours (i.e. after 5pm weekdays and all weekends).
If I ramp up the number of threads I can easily max out my line at any time of day (which proves it's not a line problem).
The constant 77.43Mbps IP profile proves it's not a profiling issue.
A constant IP address for almost 12 weeks proves my line is stable (with a large ISP, like BT, the only way to hold an IP address for this length of time is not to re-sync or reboot the HH).

The only explanation (other than throttling to prevent network overload) is there's a peak time bad-boy speed cap (I did download quite a lot last month), which could explain why the majority seem to be unaffected.

I wouldn't have a clue how to explain this to India and I'm 100% certain they either wouldn't understand, or wouldn't listen and they'd try to make it fit number 86b (sub-section 4.1.2a) in their script.

BT_care (on here) are probably the only ones able to help, and I'm not yet at the stage where I need them to look at it (there are plenty of other people with real problems).
I maintain we only need about 4Mbps for general web-browsing and streaming, plus most of my downloads are either from the office VPN, or from Usenet (both of which hit the maximum available speed), so for now I'm generally happy to ignore the per-thread speed cap.

I'd originally put the problem down to being a local/cabinet throttle - a bit like QOS on a home router, if you want to protect the local end of the network I imagine it's quite a simple task for BT to switch on a bit of QOS at the cabinet/exchange - which may well only be a throttle per thread.

Did ask at the wholesale level and got a its your AV/kit/spoeedtester response.

Getting anything out of BT Retail on its traffic management is like getting blood out of a stone