Yes Andrew, the latency doesn't appear to be an issue now. But the download performance is still only around 30% of what I was getting before, and getting for years.

Something has changed, gone faulty, in the last 10-12 days.

I've reset my cabling etc to its normal, normal socket, original 'modem' cable. No significant change in performance. Router statistics sill fine.

One thing I've noticed though on speed tests is that the x6 figures are significantly higher than the single thread, perhaps 5-7 times.

This morning's quartet:

Test 1 @ 6:29 before any changes - latency 51ms


Test 2 @ 6:48 after changing modem cable and using test socket - latency 59ms


Test 3 @ 6:51 same set up as Test 2 - latency 28ms


Test 4 @ 9:24 after reverting to normal socket and original modem cable - latency 99ms


Does that suggest congestion?

What else?

Edited by cheshire_man (Mon 29-May-17 09:45:26)

The differences do suggest congestion and if you look at the shape of your httpx6 results they are not nice and flat

e.g. https://www.thinkbroadband.com/speedtest/14960481988...

I had a call from my ISP Tech.Support this evening. After 30 minutes of conversation and him checking all sorts of things, he decided to book an Openreach engineer. He was surprised to find the request bypassed the BT diagnostic team and straight to an SFI engineer booking, due sometime tomorrow afternoon.

During the call he asked me to do a Ping x 100 to Google's DNS - 8,8,8,8. Both then and a couple I've run since show that 17-20% are timing out, those that don't get a response in 14-15ms.

We'll what happens tomorrow.

An SFI generally only going to worry about the state of the DSL line, your issue is more likely to be somewhere beyond the exchange and before Internet, i.e. ISP or wholesale element of backhaul

The engineer came on Wednesday. His first question was "Who fitted the wall box?" "BT" I replied, it was an ADSL 1.0 ftted perhaps 10 years ago while sorting out some damaged wiring. He changed it for a Master Socket 5C.

His tests using his equipment all showed a D/L of around 9.5 Mbps. But the BTW speed tests showed around 1.5-2.5. Changed the router, no difference, similarly the Ethernet cable. He used my modem cable for his equipment and got 9.5 Mbps again so not that cable. I pointed out that my wife's iPad and my laptop are both giving similar results to my desktop PC, and that the laptop got ~30 Mbps over WiFi at our club, which IMO rule out a PC problem.

But of course his speed testing was only back to the line card in the exchange. I suggested that as 'my' speed tests were all to the internet, i.e. beyond the exchange it suggested a more distant problem. He did agree that it could be a line card problem. I asked him to include that in his notes.

Oh, fortunately he was on a diet as when I offered him a cuppa and had to apologise as we don't have biscuits in the house, he declined

Got a call form the ISP this evening who had now seen the engineer's report and has requested a 'lift and shift', this has been accepted by BTOR and should be done within 48 hours, so we'll see what that does.

Good luck 🙂

Can you post up links to your Speedtests please? Not images.

I've been there and done that with lift and shifts etc. Don't expect too much.

If this is congestion will you be happy to switch provider?

URLs for the 4 speed tests early in the thread:

Test 1 @ 0529

Test 2 @ 0548

Test 3 @ 0551

Test 4 @ 0824

I presume those are what you were asking for.

As far as potentially switching provider, I'd be reluctant to. I've been with them since 2003 and have been very happy with their service and the way they've bent over backwards to help me with the (very) occasional issues I've had.

I'll give them absolutely every chance to get the issue resolved.

How interesting?

Noticed that pages that had been slow - banking especially - for the past 2 weeks or so were responding as of old. So did a speed test



Or in more detail

I wonder if the Lift and Shift has already been done?

As of this moment certainly looks to be back to it's normal self

I'll wait to see what the ISP says next week as to when the Life & Shift was done.

Edited by cheshire_man (Sat 03-Jun-17 16:58:27)

I'll wait to see what the ISP says next week as to when the Life & Shift was done.

It will be interesting to see what they say ....... I seriously doubt that a lift and shift has resolved anything.

Had you tried any trace routes whilst it was poor, and if so can you now compare those with some done now ? This might give detail as to where the change has occurred .