2nd cable modem

I have 3 pcs connected through a router, using optonline.  I need to move 1 of the pcs, but the wireless connection won't reach to the new location.  Optonline is telling me that even with my own new cable modem, they won't activate it without charging a 2nd monthly fee of $50!!! That makes no sense at all - there is no increased bandwith use on our part - just need a modem to reach what we were already getting with a wireless connection.  What to do?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

You can get another wireless access point and use it as a repeater to extend the wireless signal.
zekeAuthor Commented:
Would this solution give me just about the same strength as the direct access with the modem?
Well, anytime you start throwing repeaters/extenders into the mix, performance is sacrificed but you still should have plenty of bandwidth to cover the 1.5 or 3mbps internet connection you have.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.