Dear @Chuck-NC,

I have a Spectrum wireless ISP account and would like to route this Internet stream through my TL-1043N router for more security and multiple wired in-home connections.  Is the CPE520 or CPE510 the correct device to accomplish this?

What configuration should be use, WISP Client?

How should the CPE be configured?

Pharos CPE can accomplish this, use AP Client Router mode(aka WISP Client mode)

How to Configure the AP Client Router Mode on the Pharos device: https://www.tp-link.com/support/faq/726/