Hi Phil/Sharon, welcome to the forum.
I have a TRA001 and a TRB001, have not seen a "Aoo1" router.
My TRA001 also had that problem.
You may have have to find a repair shop locally, that may be able to help.
I don't mind if other members disagree with my comments.
I don't profess to know everything, and I may learn something new.
"Never attribute to malice that which is adequately explained by stupidity."