Amateur here. Need some help with connection.

Here’s my equipment: Gigabit connection Nighthawk r900p Fios gateway/router not sure of model at the moment Fios ont plugged into gateway wan Nighthawk plugged into gateway

So currently I have 4 WiFi’s. 2 from gateway router and 2 from nighthawk

What I’ve done to try and resolve issues: I have called and put the gateway into bridge mode Then went onto nighthawk and tested connection I can connect to nighthawk but said “connected, secured”

When I told the fios tech this they said the lease needed to be released I think. So another tech got on the phone and did that. Still no connection to internet

So for not I have left the nighthawk plugged into fios gateway and have removed bridge mode since I have no connection doing that.

So with the fios not in bridge mode if I plug my pc directly to nighthawk I only get around 150up and down. So no gigabit apparently working on that

Sorry for suggestions but I’m tech savvy but new to the networking thing. Any help is appreciated.