No, I have a problem which; I cannot resolve, BT second line cannot resolve, 2x technician visits cannot resolve, router replacement has not resolved ... Modem stats look OK and I will get round to running your batch files! Currently waiting for a Router firrmware update which "might" solve it. My feeling is that my problem is in the cabinet!

In reply to a post by MHC:

My feeling is that my problem is in the cabinet!

You, and the public sector unions.

I get the same results with the TBB speedtest showing my connection alot slower than other speedtests.

Thanks for sharing. That's almost exactly the picture I see in all my tests on the Ookla platform.

The MLAB test suite seems pretty authoritative: it's from a consortium featuring Google amongst other distinguished players, and offers tools to measure bandwidth, traffic shaping/throttling/blocking and a bunch of other diagnostics I've not seen anywhere else. I'm well impressed.

Their test gives me 3.1MB/s (~25Mbps). It also reports that BT Infinity appears to rate-limit my uploads (specifically, BitTorrent and port 6881 uploads achieved only 969Kbps), but no download rate limiting was detected.

From this discussion it would appear that TBB reports are minima, Ookla and others are maxima, and real-world figures somewhere in between. Interesting, methinks. I shall focus on the elaborately documented and peer-reviewed MLAB tests in future.

Thanks� I believe this is more a consumption monitoring tool than a systematic bandwidth measuring tool. Please see my comments re: the MLAB test suite.

My line, with 38714 profile, just gave a 37.5Mbps result on speedtest.net.

With the 15MB file, I tried using "wget" on my Linux box, which fetched the file using the HTTP protocol. This resulted in a range from 3.5 to 4.1 seconds.

1) 3.5s = 4.47MBps = 35.8 Mbps (where M = 1,000,000)
2) 4.1s = 3.8MBps = 30.6Mbps.

Those are raw data speeds, without adjusting for the overheads of HTTP or TCP.

Which of the speedtesters present their answer in raw end-end data terms, and which one adjust it to make allowances (possibly guessed) for the various overheads?

In reply to a post by WWWombat:

My line, with 38714 profile, just gave a 37.5Mbps result on speedtest.net.

That is probably spurious - is it repeatable? I normally get just over 35 on speedtest.net, but have on occasion got over 40, which is clearly impossible.

Edited by kasg (Wed 21-Dec-11 16:58:42)

Do you still have the same problem if your PC is connected directly to the modem (by-passing the router completely)?

In reply to a post by RobertoS:

In reply to a post by MHC:

My feeling is that my problem is in the cabinet!

You, and the public sector unions.

I sort of work in the public sector, so I got it, & very topical too

In reply to a post by bruiser1:

Well, using TBB's own download test files, on the 100MB file the throughput comes out at about 23Mbps, which is near 30% greater than their own test reports.

I tried that 100 Mb file at around noon today.

It took 1 minute 37 seconds, with a transfer rate of 1.03 MB/Sec. i.e. roughly one third of my usual download speed of around 3 MB/Sec.

Traffic managed by my ISP?