Yes all on ethernet and the same 24/7. I think I'll ask my neighbours if they see the same.

I'm not sure if http://www.speedtest.btwholesale.com/ is single or multi-threaded. What do you get on that?

I'm sure it's multi threaded. The last one I did was 28th Sept and I got -

Download speedachieved during the test was - 36.64 Mbps
For your connection, the acceptable range of speeds is 27.5 Mbps-48.53 Mbps .
Additional Information:
IP Profile for your line is - 48.53 Mbps

Upload speed achieved during the test was - 7.72Mbps
Additional Information:
Upstream Rate IP profile on your line is - 10 Mbps

p.s. - I'm on 55/10
p.p.s. - just did another and got 34.82/7.52

Edited by longedge (Wed 02-Oct-19 12:00:21)

As a matter of interest I asked my next door neighbour to run a test so I could make a comparison. His line comes from the same pole as mine.

He got this.
Whilst mine was this.

Edited by longedge (Wed 09-Oct-19 13:09:04)

If you can take a laptop around and test that on the other connection you can rule out any quirks due to antivirus software, or an issue with your own router.

On the multiple download test you have a similarish curve on the way to the full speed, but your single download looks like its held back by something.

Ta for that. I meant to add that he's with BT and I'm with PlusNet.

Just curious, but if you disable and then re-enable your NIC adaptor, do the speeds jump up to full speed for both single and multi-thread ? I am suffering the same problem, my single thread speeds are awful but if I disable my NIC then re-enable, the speed is perfect again for a few hours. It can't be Zen as my other PC attached to the same line and router is rock stable with fast single and multi-threads 24/7. I have tried 3 different NICs.

Well slap my thighs !!

I tried it and got this.

The best result I've had for a long time 8^)

Edit - Although it didn't last and now doing the same again has no effect.

Edited by longedge (Fri 11-Oct-19 13:11:58)

Sorry to hear that, When I do that I seem to get about 2 or so hours of decent speed again, and then it goes back down, it usually works each time I do that. Hardly ideal, I don't know what is going on with our connections.

Are you via wired ethernet or wireless ? If wired get yourself a £9 ethernet to USB3 adapter and try that then you can rule out the NIC. You can send it back if it doesn't help if you get it via Amazon.Actually given it is under £10 they will probably let you keep it for free without having to send back.

Edited by BlizzardUK (Fri 11-Oct-19 15:38:35)

I have a desktop PC and use the Intel Network Adapter onboard the MB. I also have a dual band wifi card in the computer which is normally disabled but this morning I disabled the ethernet and enabled the wifi and connected to the 5GHZ connection on my router (I run 2.4 and 5GHz on separated ssid's). It made no difference to the subsequent speetests I did but thanks for the suggestions.