After suggested compatable wifi router to add hard wire to an Optus CG3000-2STAUS

I thought I explained it in the question, I want to get advise as to what wifi router I can get to blue wire to the Optus router and position in an advantageous position central in the house to get better coverage in my split level home. The coverage has been pathetic and frustrating for years with inumerable conversations with Optus tech etc.....and no solution.

I really did not think it would be this difficult to solve. ie. going to a forum to try and solve it.

I appreciate any help or advise I may receive from any members of the forum who take the time to message me.

regards

paul g