Orbi RBR50 installation problem

Question on top of what has already been answered...again...laymen.

So I have fiber coming to my house, but CAT5 from wall to current Netgear router (no modem)...everything operating at full speed with all my tests and service provider tests.  I was told to just unplug from current router and go into Orbi.

I thought the Orbit was a router and modem all in one?

thanks for any input. 

---

Guex wrote:

Hi,

 

I purchased this Orbi, recommended by a friend, to help with current slow internet.

 

I currently have a modem that I lease from Centurylink - which is my provider.

 

I was told I could replace this router with the Orby router, but when I tried to install it, it tells me to connect it to my current modem., which I did. However, now nothing works.

My question: can the Orbi router replace the current modem and be a stand-alone or do I need a modem in addition?

 

I am a layman and need help desperately. Anybody please?

 

Thank you inadvance.

Helena

---

Do I still need a modem with this fiber-to-CAT5 to Orbi?