Internet loss suddenly

[Listo1]

Hi There 
Hoping someone can help ! Our internet connection has just stopped working today … We have full fibre.  The orange light stays on the hub, then starts flashing purple.  
The PON/ Los lights are not on - the modem 

I have Logged the fault with BT although they first told me to do the usual switch everything off and on which I have … several times today and tried to tell me there was nothing wrong ! They they ran more tests and are sending an engineer out but the earliest is Wednesday ! I have three teens who are going crazy ! Please help ! If there is anything I can do to fix this myself please let me know ! 

[licquorice]

There is nothing you can do but wait for engineer.

[iniltous]

The PON ( normal working ) or the LOS ( loss of signal ) shouldn’t both be off , it’s usually one or the other lit , which suggests it’s the ONT itself that’s faulty , you could try powering it off and on , that should bring it back to life if it’s possible to do that , but if it’s kaput , as stated until the tech turns up you are stuck ….FWIW , Halo3+ gets a lot of stick on these forums , but in a case like yours , it would have taken over using the 4g mobile network.

[Keith_Beddoe]

It could just be the power unit, as switch mode power units do have a tendency to fail.

If its a 12 Volt one, you may be able to find a suitable substitute to try.

[Listo1 · Accepted solution]

Thank you all for your help … I guess it’s the waiting game until Wednesday ! Fingers crossed for a cancellation appointment !