In reply to a post by RobertoS:

I'm afraid my post, which was a reply to j0hn83, can seem to read as if I didn't trust what you said. That wasn't my intention, so I apologise.

It was more of a general comment that although all of us say honestly what we experience when things happen to us or when we witness a scene, we may not be entirely accurate about the actual facts of the event. Facts that we very possibly wouldn't be aware of.

NP RobertoS , It just seemed funny to me that it was fine before the power cut.
But tech is like that.
I could not find anything wrong with a TV I was called out to , but it just would not work.

I've lost 20Mbps since my move from Sky to Plusnet yesterday.
I used to get constant 74mbps downloads over the lan. I'm now getting 54ish.

http://forums.thinkbroadband.com/plusnet/t/4614851-r...

So unlikely to be a different port on the DSLAM, most likely is that you had been on a 4 or 3db profile which has been reset back to 6 with the move.

Are you using a different CP router now ?

I�m using the same tp-link archer vr900 which comes pre-configured with multiple isp�s settings. I�ve only changed it from sky�s mer to Plusnet.

Profile change or G.INP turned off during migration, which usually happens when I move my line every 12/18 months

Leaving things alone it usually returns after a week or two

That's encouraging.
I will leave things alone and hope for the best.

You probably also changed underlying Openreach product. That automatically rested DLM back to the 6dB target noise margin and possibly heavy interleaving plus at least 8ms additional latency. As Andrew says, that will self-correct quite quickly.

Once the correction kicks in two things happen. The target SNRM will drop by 1dB steps (and auto-resync each time), and G.INP can be enabled which removes classic interleaving that costs many Mbps and sets interleaving to 8/12/16, with zero additional latency.

In reply to a post by Mitchy_mitch:

I've lost 20Mbps since my move from Sky to Plusnet yesterday.
I used to get constant 74mbps downloads over the lan. I'm now getting 54ish.

http://forums.thinkbroadband.com/plusnet/t/4614851-r...

Same thing happened to me moving from PN to IDNet. It eventually recovered under slightly odd circumstances a few months later.