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If worse case on the BT/Openreach checker is 50 and you are getting 22 then there is something seriously wrong.
However the fact you are using an extension on the DSL cable could easily account for that. When you do a test with it directly to the master socket, use the test socket (if you have one). You will be looking for a increased speed or increased SNR as it's possible DSL has reduced your speed because of the extension, but an increase in the SNR will mean it can recover in time.
Post your DSL stats before you do the test and again after the test. Not sure how the PlusNet router shows them, but on Vodafone it looks like this:
Line Quality
| Current Rate | 77448 kbps | 20000 kbps |
| Maximum Rate | 78624 kbps | 28687 kbps |
| Signal-to-Noise Ratio | 5.2 dB | 11.5 dB |
| Attenuation | DS1 9.0 dB, DS2 21.6 dB, DS3 33.7 dB | US0 2.0 dB, US1 14.9 dB, US2 24.0 dB |
The seller was a bit slow on sending the THG3000 out, it was only posted yesterday, but hopefully will be here soon. The fact the Post Office workers were on strike today won't have helped.
You can see what my sync speed are above, and here is my checker results:
And on that I get an actual download speed of approx. 70Mbs.
I am currently on the Plusnet equivalent of Vodafone Superfast 1 so indeed can not theoretically expect above 35 Mbps and realistically less. Three years ago I recall Plusnet said at least 25 Mbps. When I signed up Vodafone said 16.x which is what alterted me to the drop.
I have not looked at router at all, just run a couple of speed checks from the browser. I connected the laptop with a cable but little difference to Wi-fi as less than 2m away. When I check direct to my wall socket it will just be the router connected.
I have just been to the BT whole site again and ( hopefully) have attached the report. This is using address checker as number checker not working. Maybe I wrongly read it but I thought at the weekend the results were faster. I can check again.
This is what I did earlier. Disconnect plug from BT master socket so nothing connected all to incoming cable as house wiring is all from the plug. Connect router to BT master socket with short cable only, microfilter not fitted. Connect router to laptop with LAN cable, turn off wi-fi on laptop. Nothing else connected to router.
I did three tests but all very similar result for download, a bigger difference for upload and ping.
This shows the effect of house wiring to be minimal.
As posted before the best speeds have I seen are just under 25 Mbps.
I tried BT Broadband Wholesale again. From address the same speeds, phone number not working - maybe because the transfer is booked ? The check gives the cabinet number but is there any way to identify where it is located ?
Back to when I had regular dropouts last year mostly I did nothing, just waited for the router to connect again. If a second dropout very soon after then turn off router and shutdown computer, wait a few minutes, turn on router, restart computer.
Should this have triggered DLM how would this be reset ? Contact Vodafone to contact Openreach ?
The master socket looks like the picture attached from long before home internet ever existed. Just a single socket nothing else, nothing except incoming cable hard wired to it. I don't have any test connector.
I did not use microfilter so as to eliminate given no phone connected. I thought the only reason for a microfilter was to block the internet ' noise ' from the phone i.e. internet signal is just pass-through. The attached circuits while all slightly different for the phone connection show this.
With home wiring connected then the socket the router is into has a microfilter as also DECT phone base and the basic phone to the master socket via plug-in splitter has a microfilter. So to be sure I have explained this correctly normally two microfilters on incoming line but only one microfilter between master socket and router not two.
