I've just had BT Full Fibre installed today switching from Plusnet FTTC.
The PON light on the ONT is flashing and the engineer expected it to go solid green.
He took about 2 hours to fit everything and then spent about 3 hours waiting for the ligh to go solid green saying he expected it to work before he left and had to wait until it did. He hasn't done very many fibre connections yet.
His little meter showed we had light at the end of the fibre and I think he mentioned the number 14 (not sure of units) as the amount of light getting through and that it had to be under 26.
If I connect the router it says wait until midnight on the day of activation so is this an issue that should sort itself out then or is the engineer right that the PON light should be solid green after it's connected?