New Infinity User/Speed Question

Question

Hi All, I`m another newbie in here and also to the Infinity BB as well.
So Hello and Good Evening to you all. :-)
I had my Infinity installed on Monday Afternoon without a hitch I am pleased
to say and I have been lurking on the forums reading up over the last week
or so checking out the pitfalls and wrinkles I am likely to encounter.
I know this is an on going chestnut on here from all that I have read but when I
was given a over the phone (by a nice BT lady employee) speed test (I have had a new line installed
before getting Infinity) I was told I would get 37.5 meg down and over 8 meg upspeed of which I
was obviously happy and impressed.
When the young man did a speed test on Monday I got a creditable around about 32 meg so that was fine.
I have been testing since then on and off and a few times its got back to 30 and over but mainly in the 20s
and teens.
Tonight I did a test at about 20:06pm and got just 6.96 meg down what is that all about?
The Up speed had been mainly around 7-8 so I down have a problem with that at all but what about my dowload speed, the homehub is wired into my PC.
What do you suggest I do next as I dont really fancy waiting until the 10 days as it seems a bit convenient that date I am committed for 18 months!
Any help will be gratefully accepted.
Andrew.

Answer 1

"Is that 15 sync or through put ?"
To be honest, I don't know.
I have been hovering around these forums for a couple of months, since Infinity came to my area, not sure whether to change over or not. I was forced into a decision when informed that my ISP was closing down (UKOnline), and I could move to Sky with 6 month free broadband. As I detest the whole Sky/Rupert Murdock organisation ........ here I finally am, on Infinity
Sorry, strayed a bit from the topic there. During this 'hovering' period, I swear that I've seen a post stating that 15 Mbit figure, but I cannot remember where it is, so cannot confirm or quote it.
Perhaps, based on the Speedtester results output, which states :-
For your connection, the acceptable range of speeds is 12000-38717 Kbps
That it maybe the sync speed rather than the throughput. Either way, they are BOTH low, if true .....
Cheers
Edit: @Monkey - I would regard sync speed as the speed negotiated between your router/modem and your ISP, and the throughput the actual speed OBTAINED when transferring files, taking into account the overheads of the protocols/methods used (losses)
Throughput always being less than the sync speed
When i was on ADSL2+ I would knock off around 15% for losses (overheads). So if I synced up at 12 MBits, I would expect to a get throughput of around 10.25 Mbits'ish, and this usually was the case. 12Mbits - 15% (1.8 MBits) = 10.2 Mbits. This 15% figure may not be relevant to Infinity, I would hope it would be less, but don't know.