@jslateiv 

The Deco by default will automatically try to get an IP and internet, similar to connecting a computer to it. If you already have the Deco setup, try to switch it to Access Point Mode in the advanced settings. 

@jslateiv 

You much have one Deco wired to the router. They all can not work only off of Wi-Fi.

Here is also a FAQ that gives steps to try as well: https://www.tp-link.com/us/support/faq/2239/

@Tony   yes,  I know.  That is how it is configured.   Interesting,  if I place another router inbetween the main modem/router,  then the Deco works as expected.   For some reason the Deco does not want to allow Internet communication/translation through when connected directly to the main modem/router..  same problem exists even whenthe Deco is set as AP instead of Router..

@jslateiv 

I am having this exact same issue. I just got the Verizon LTE router and have a deco m5 mesh network.  Any device that connects wirelessly to the mesh will not get internet even though all lights are green. Any hard wired device connected through the mesh does get internet. I have tried access point and router modes. I have tried speaking with Verizon as well and have hit dead ends. Has a resolution been found for this?

@Njf2570 

I found a simple solution on reddit that solved the problem for me.

Step by Step:

1. log in to Verizon LTE box using browser address bar; 192.168.1.1 and password on underside of Verizon box

2. click on Network

3. then LAN

4. now in LAN Settings under the Basic heading, change IP address to 192.168.10.1

5. click Save at bottom of screen and wait for green light to stabilize on front of Verizon box.

Done!