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View Full Version : Relationship between snyc rate, IP profile and speed on migration


dlloyd
01/03/2008, 12:25
I migrated over to ADSL24 on the 27th Feb.

With my previous ISP, I used to get speeds of about 6500 kps (when their servers were not overloaded). However, since migration, I seem to be stuck at about 1950 kps.

My router is currently synced at 6592 kps, and my IP profile is 5500 (after dipping pretty low when I first migrated). However, every test I have run at speedtest.net for the past 3 days has given me speeds of about 1900 kps.

What could be causing this difference? Is it simply a case of waiting, or is it likely that there is some other problem elsewhere?

Any suggestions would be gratefully received...

Daryl

Edit - I don't know this means anything, but every time I try to run the BT speed tester, I get an error back saying "The system is currently busy. Please try again shortly, however if this problem persists, raise the issue with your service provider." Surely it cannot be continuously busy for three days? So, does this indicate that I have some additional problem?

tboorman
01/03/2008, 12:50
You can check the expected speed for the central you're connected to at http://adsl24.co.uk/centralstatus.php. You should also check whether there are any known contention issues for your exchange at http://usertools.plus.net/exchanges/. I assume that you're using a wired connection when testing your speeds, with no other downloads or uploads running.

dlloyd
01/03/2008, 13:00
Tim

Thanks for those suggestions: I'm currently on Central 5, which is running at 7.1 (and in the past, when I have tried, all centrals have been up around this figure), so it is not that.

However, following your exchanges link, I am informed that "BT is reporting that some of the virtual paths at this exchange are not operating within BT Wholesale's planning guidance, although they are still operating within the product specification." Would this account for my constant 1900 kbps speed, way below my IP Profile?

Daryl

James
01/03/2008, 13:55
Yes, it would. It means there are capacity issues at your exchange that will affect a lot of users at the exchange and all ISP's (minus LLU ones).

BT usually sort out VP's soon :)