mybroadbandspeed.co.uk upload test faulty?

[#1]

Currently testing a new router at the moment and the BT tester is showing all is well and same for thinkBB.  But mybroadbandspeed.co.uk at around 80% of the upload test is its almost halving the speed every time, dropping the expected 46kb/s to 27kB/s
Anyone else seeing the same?

[#2]

Not quite, but mine always says Up at 377K when the router says 488K! Not seen any thing different for long time and presume that it is a function of how it works.

[#3]

Hi Colin,
That's pretty normal.  Your router is saying that the speed it is synchronising with the exchange at is 448Kbps.  377Kbps is perfectly normal as they're always a sliught degradation.
Gus - I tried from the office earlier and didn't see any of those symptoms.

[#4]

Quote from: Gus

Anyone else seeing the same?

Yep, seeing the same thing here.  Gets to about 75% through the upload test and then the speed drops to ~220kbps.

[#5]

the attached is what I'm getting, was checking to see if its a quirk of this router or if its the site its self

[#6]

not seeing the same on this vm connection yet speedtest will randomly chuck a frozen test out.
2 tests done with each browser top down chorme, IE 9, FF chrome is all always best including running HD content
Today 20:44 31648 kbps (3.96MB/s) 3138 kbps (392kB/s) Share
Today 20:44 31761 kbps (3.97MB/s) 3122 kbps (390kB/s) Share
Today 20:43 31659 kbps (3.96MB/s) 2963 kbps (370kB/s) Share
Today 20:43 31654 kbps (3.96MB/s) 3002 kbps (375kB/s) Share
Today 20:38 31666 kbps (3.96MB/s) 3016 kbps (377kB/s) Share
Today 20:38 31671 kbps (3.96MB/s) 3000 kbps (375kB/s) Share

[#7]

I have been testing with FF 3.6 and IE 8 and can't recreate, so it seems to be a quirk of Opera 11.11