So, Openreach appear to have screwed it up.
I waited in all afternoon, then rang Plusnet to find out what happened. Turns out the engineer did the switchover at the cabinet then decided he didn't need to walk 100m to my house, probably presuming that I already had a VDSL box since I already had fibre.
Plusnet guy was hugely apologetic and promised to do whatever he could to get me the required box.
So now I'm stuck without broadband even though the service is allegedly active.

This industry structure, where Openreach has no service responsibility to the end user is a bit mad. Plusnet guy told me OR would have to pay Plusnet a big penalty for this screw up. I said "that's nice for you. What do I get?"

In reply to a post by rockdoctor:

This industry structure, where Openreach has no service responsibility to the end user is a bit mad.

Blame OFCOM ...

Never tried this and I maybe talking complete rubbish but I wonder if you use the sky modem router to sync to the cabinet, then it should fail with any authentication it uses.. But maybe at that point you could create a PPPoE connection actually using the plusnet details?

http://community.plus.net/library/broadband/fibre-he...

Edited by kandrews8098 (Mon 10-Nov-14 20:37:17)

In reply to a post by kandrews8098:

Never tried this and I maybe talking complete rubbish but I wonder if you use the sky modem router to sync to the cabinet, then it should fail with any authentication it uses.. But maybe at that point you could create a PPPoE connection actually using the plusnet details?

http://community.plus.net/library/broadband/fibre-he...

That will only work if the Sky router can be configured in modem-only mode.

The OP could buy a HG612 modem from Ebay or a Billion 8800NL from Currys.

I rang Sky technical support to see if they would unlock their router so I could use it to connect to PlusNet until the new router delivered.
I got through to a competent tech lady who understood immediately what I wanted, went away and came back with the answer 'no'. I asked if there was anyone else who could authorise it - she said 'nope', not because they were unwilling, but because they no longer hold the line, so can't access the router to unlock it.
So Sky were helpful, but couldn't solve the problem.

Then tried Plusnet again. Nice bloke sounded distraught but couldn't come up with a solution, due to my inability to be at home during another weekday. Apparently the OR engineer won't post out or drop off the router - they must install themselves.
In the end we booked an afternoon slot with a note that no-one will be in for the first 2.5 hours of the slot.

Fingers crossed...

Yay! Engineer came while my wife was in. She reports the Openreach modem is installed and tested. Hopefully just need to plug in the PlusNet router and I'm back in the game.

Remember it can take 15 minutes to sort itself out. Even if all the right lights go on.

Well I got home at 5:30 and by 6pm I had eaten dinner, connected up modem and internet started working. 15 mins was generous - more like 1 min before all the lights came on.
Happy bunny

As a bonus, while my downstream rate is the same as it was with Sky, the upstream has risen to 16 Mbps (see latest Speedtest)

I think the 15 minutes is probably for the TR-069 system to cause your account to initialise. The PN people will have already activated it because they knew the migration was complete .

The 40/20 is a nice touch! No other ISP I know of does it.