So Jamesandrach, there's nothing that implies this has to do with loss of sync or even PPP Internet session, perhaps one of the Plusnet CRT members can post your Visual Radius log to see if there is an underlying problem with that.
The BT Speedtester has been having problems running the Diagnostic Test, so that problem is not special to you, but one thing you could do is check your
Current Line speed (Login required). Copy and paste the info here (but not your phone number).
Your stats show you are that close to your exchange, I wouldn't think loss of sync was likely to be a problem, so plugging into the test socket etc isn't likely to make any difference. Apart from the Master socket, do you have any other sockets and are they used for anything?
The problem you seem to be having is loss of download speed and significant increases in ping time, but what is also a real concern is the 80% packet loss. When/How long ago did these problems seem to start - how long have they been going on for?
That last image that's showing the packet loss, where did that come from, what was the test being carried out?
You aren't explaining your self very well, and we don't need pics "to prove your case" as you put it, just copy and paste of data from a test result or a screen grab image attached to a post is all that's needed. You are posting as if someone doesn't believe you!
Before looking at test results any further, it would be helpful if you clearly explain how you are experiencing "this problem". The impression I get is that you are playing a game on your Xbox and you get kicked off for what it seems as though is a sudden increase in lag. You are then running some tests to try and discover why, and you are getting a wide variety of results depending on which test you run and on which device you run it. Now does that sum up the problem well enough as you see it?
To help narrow down the cause, checks have to be carried out in a very methodical manner and with very controlled conditions, but first lets try and get a clearer picture of what may be going on when you experience the problem.
You've mentioned your Xbox, a Laptop and an iPad. When you get the problem on your Xbox, are your Laptop and iPad switched on and is anybody using them? If they are on, what are they doing at the time you get the Xbox problem? For example is video being streamed?
If you haven't already, what you need to do first is only have the Xbox on - I note you already have it hard wired. Do you get the problem at all then?
I hope you've turned your modem/router (TP-Link) Firewall back on and got the correct settings for your Xbox. Having the Firewall off is a very bad idea.
