would it be possible to connect this router directly to fiber box? Netgear Nighthawk AX4200 RAX43

[TK0]

Hi, I just want to ask if its possible to connect my router directly to fiber box without going through the modem. I was told by pbtech technician that is possible but after i make it work with the modem and try to plug it directly to fiber modem, the internet connection is lost. The router is netgear nighthawk AX4200 model#RAX43 5 stream Wifi Router. Any information is highly appreciated. thank you so much. 

[antinode]

> [...] without going through the modem. [...]

   Some of your readers might know nothing about your (unspecified) "the
modem", or how it's configured.

> [...] I was told by pbtech technician that is possible [...]

   Ask him how?  Ask PB Tech?  Ask PB Tech users?

> [...] Any information is highly appreciated. [...]

   Same here.