Fibre

[Del61]

I upgraded to fibre , everything was done ,bt engineer put all the equipment inside but could not connect to the hub as there was a  red light on the box he said when there is 2 green lights just plug the hub in and it should  just work, did tgat after a week when 2 green lights but the hub was flashing red and there was 3 green lights still trying to get it fixed , bt should of been out on moody but no show .

[Del61]

I upgraded to fibre , everything was done ,bt engineer put all the equipment inside but could not connect to the hub as there was a  red light on the box he said when there is 2 green lights just plug the hub in and it should  just work, did that after a week when 2 green lights but the hub was flashing red and there was 3 green lights still trying to get it fixed , bt should of been out on moody but no show . Had to go back to the old system at the moment 

[chrisjp]

If you could go back to the old system (which I presume you mean you've plugged your hub into the old telephone master socket) - and it works, this suggests that your FTTP system hasn't yet been fully turned on, despite the green lights on the ONT.
You're probably best reporting this as a fault using the online system - www.bt.com/exp/engineer-booking.
This avoids having to speak with BT's telephone agents who really only want to upsell you something so they can get their commission, and are not trained in understanding faults.
As an aside, it would have been an Openreach engineer who installed your fibre, not a BT one. But, because of Ofcom requirements, you have to raise all issues with BT as your service provider.

[Del61]

Yes I have gone back to my old master socket which is not turned off yet, should my hub be set at full fibre mode.
Should I change it ,would it change the hub settings and if it didn't work how could I turn it back ?.

[licquorice]

It doesn't matter how your hub is set until you change to FTTP. All it does is change port 4 from a LAN port to a WAN port. When you get FTTP, you connect the ONT (optical modem) to port 4. 

[Del61]

I have plugged it in port 4 as I was told when I saw 2 green lights on and when I plug it in all 3 lights are green and the hub just flashes pinky / red

[licquorice]

Right, if the ONT is green you need to set the Hub to FTTP mode and disconnect the DSL lead.

[chrisjp]

If your hub was NOT set for Port 4 to be a WAN port (that is for full fibre, Fibre to the Premises, FTTP) then that may be why your hub won't connect when it's plugged into Port 4.
For Fibre to the Cabinet (your old system) it doesn't matter which way Port 4 is configured because it's not used to connect to the Hub.
I would set your Port 4 to WAN (FTTP) mode and try connecting to your hub again.
You can change Port 4 mode back and forth by accessing the Hub manager by typing 192.168.1.254 into a browser on a computer connected to the Hub, and switching "Full Fibre Mode" from "Off" to "On" and vice-versa.

[Del61]

if I switch to full fibre mode from off to on would I not loose Internet to change it back if i had to, I was told to plug it into port 4

[iniltous]

If you don’t normally have anything in the 4th yellow  socket , like a smart TV or a games console, then switching it from LAN to WAN obviously can’t affect anything , because nothing is using that socket , but as stated for the router to connect to the ONT successfully (so using FTTP ) the router via  the 4th port connected to the ONT needs to be set to ‘full fibre mode’  to turn the 4th socket to a WAN socket from a LAN 

FWIW , the fact your ADSL/VDSL is still working suggests switching to full fibre mode when connected to the ONT won’t fix the issue  , as your account details are still associated with the copper pair based service, but obviously in the future when whatever the problem is sorted this  is how the router and ONT will need to be connected together.

TBH , if the LOS light was lit when the engineer was on site , then the ONT was probably never authenticated successfully (the ONT normally needs to be connected correctly to do this  ) , so I  think you will need to a new engineer visit to authenticate the ONT now the LOS light is extinguished and the PON light is green , the engineer who said wait until the light goes from red to green and it will work was probably being a little optimistic.