Unable to connect to AOL

Question

unable to connect to AOL 9. from lap top to main comp.WIRELESS LINK UNSTABLE LINKING WITH aDDON gWAR 3000
AND Llonyddfa. Am using rouiter supplied to up date preent service model no DSL2640R. Have lost original booklet and hard disc.,
Could you kindly send me a replacement or instruct how to improve this present unsatisfactory position Iam rather old nearing 85 and slowing up too quickly. I am an old subscriber. A.c.THOMAS [e-mail]