Router is flashing orange. Plus net hub one

[#1]

Hi,
My routers been happily working for some time now. Its had an occasional wobble but nothing major.

Until this evening. Its flashing orange and nothing I do will persuade it to do much else.
A reset will get it to go blue for about 10 seconds but then it reverts to its preferred orange flashing state.

Is there anything I can try to fix this? The plus net help apps drawn a blank.
Its on a dsl connection via open reach.

Thanks for reading, Tina 😁😁

[#2]

Hey @Tina2, 

Thanks for your time on the phone this afternoon, I've now created a support ticket with a record of our discussion and the actions I've taken to resolve this for you. You can view the ticket here. 

Thanks.