|
|
hi there
on my 5664 connection i should i have a 4.5mb ip profile (have 5mb) as the 5.0mb ip profile does not start until 5696
on a 20cn connection , what happening , not that i am, complaining 
my bt speed test result here http://imageshack.us/photo/my-images/411/bttest.jpg/
|
|
|
Looks like you are on the modern continuous IP Profile = 88.2% of Sync; not the old stepwise one.
What exchange?
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
|
|
|
|
erm the exchange is 20cn only market 1 , i thought for the 88.2% of Sync, you needed to be on a 21cn connection ?
|
|
Register (or login) on our website and you will not see this ad.
|
|
|
So What exchange? If you would only give me the facts I might be able to puzzle it out for you.
Market 1 is irrelevant! That's about what other ISPs are there ; not what BT has there.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
|
|
|
What is your upstream speed?
If not 448 or 832, then probably a 21CN WBC connection.
|
|
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
|
|
|
The screen grab OP provided says 0,45 Mbps.
Probably OP is on an ADSL Max product on a exchange that has been 21CN'ed earlier than expected.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
|
|
|
upstream is 448 , screen shot of exchange info from samknows ( location removed ) many thanks http://imageshack.us/photo/my-images/825/30921513.jpg/
|
|
|
when i put my number in here http://www.dslchecker.bt.com
i get
Your exchange is ADSL enabled, and our initial test on your line indicates that your line should be able to have an ADSL broadband service that provides a fixed line speed up to 2Mbps.
Our test also indicates that your line currently supports an estimated ADSL Max broadband line speed of 3.5Mbps; typically the line speed would range between 2.5Mbps and 6.5Mbps.
The actual stable line speed supportable will be determined during the first 10 days of use. This speed may change over time, to ensure line stability is maintained.
If you decide to place an order, a further test will be performed to confirm if your line is suitable for the service you wish to purchase.
Thank you for your interest.
says nothing about adsl2+
|
|
|
Interesting - as you say you shouldn't have a 5000 IP Profile?!
Have you recently re-sync'd and you previously had a slightly higher sync and BT's DLM is still catching up?
|
|
|
|
yes i had a higher sync of 5728 but it changed to 5664 about 7pm last night , but no resync as in losing the adsl connection with the exchange
|
|
|
If you are saying your connection speed (sync) changed from 5728 to 5664 then that's a 'resync'!
The IP Profile normally updates VERY quickly when going down though, so it's a bit strange...
|
|
|
There is the odd occassion, where routers change speed, but do not report the sync up the line so to speak, rare, but seen it before.
Sounds most likely. Another is that the old system could at times take 45 minutes to update the reporting of the correct IP profile value, even with a drop.
|
|
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
|
|
|
Agreed - but the OP said the change happened yesterday at 7pm, so normally that would cause the IP Profile to update by now.
|
|
|
Profile updates are only triggered at sync time, so if an update failed for whatever reason it won't change until triggered by another re-sync.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre FTTC 80/20 trial.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
|
|
|
it has now dropped to 4.5mb  as i have a netgear dg834g v4 router that i can hack according to this page http://www.kitz.co.uk/routers/dg834GT_targetsnr.htm
as i am only 32kbps of the 5mb profile what value would i enter to drop the snr by - 1db as the table on that site does not give that value
|
|
|
What time of day was it when you connected at 5664? If it was dusk, dawn or night a simple re-sync now should do the trick. You need to avoid several re-syncs in an hour though as the DLM could raise your noise margin and that is a big nuisance. A couple should be OK.
If it doesn't, I'd go for something simple, like 70 or 80%.
Longer term, get RouterStats Lite and monitor how much the noise margin varies. It's worth knowing if there is scope for more, and that will give you a good idea.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre FTTC 80/20 trial.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
|
|
|
In reply to a post by Anonymous:
= 100 * 10 ^ (-1/10) = 79
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
|
|
|
|
i did a resync at just after 8am this morning and it resynced back at 5664
i have router stats lite installed i get a noise variation of 0.7db between day and night
after hacking with the the value that XRaySpeX suggested (79 to get -1db) now sync at 5920 with snr at 4.9
is it possible to drop it by -0.5 or is -1 the minimum.?
i would expect the snr to drop to around 3.9 - 4.0 at night with the current figures could this cause any packet loss or latency , hence my asking if i can decrase by -0.5? , many thanks
|
|
|
Try 100 * 10 ^ ( -0.5/10) = 89
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
|
|
|
I would go for --snr 50, which should give you round about 3dB and probably 6240kbps or a fraction more. That's worth a 5500kbps profile and should be fine given the only small 24-hour variation.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre FTTC 80/20 trial.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
|
|
|
|
i tried that but found the speed to be all over the place, or maybe that was just coincidence at the time and worth another try
|
|
|
From what you've said it should be fine, for both latency and packet loss, so possibly there was or is another factor. When did you try 50?
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - Plusnet Value Fibre FTTC 80/20 trial.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
|
|
|
|
sometime last week, i did do this about 8pm in the evening , i assume would be better done in the morning, although it did obtain the sync for a 5500 profile
|
|
|
I'm starting to see how your IP Profile may have been a little confused now you've given a bit of history and know that much tweaking has gone on!
It's always worth giving all the facts when you post
It's also worth registering here at TBB (it's FREE) so we know you're the same person! 
|
Pages in this thread: 
Print Thread
XRaySpeX
