Can't access internet w/Netgear WN300 & Ruckus R500

[peace_ev_luth_b]

We have two Netgear WN300 Range extenders and one Ubiquiti mesh with two APs.  Our internet is provided by Spectrum/Charter/Time-Warner using an Arris TM1602A router and Ruckus R500 Access Point. The Ubiquiti units have no problem accessing the internet. The two Netgear units show up on the device list of the Arris. When trying to connect to the internet via the WN300s we have a strong signal but get the "no internet access" message.
The WN300s were set up using the Arris box's WPA access process.
I ran Advanced IP Scanner and nothing shows up as a Ruckus device. In fact, all of the addresses under 192.168.0.### are not found. Spectrum did set up their network at 192.168.250.### and 26 devices show up.
Are there special steps we need to follow?
Thank you.