I recently picked up a pack of Deco XE75's to replace some very old google pucks. I was able to set them up and get a WAN connection fine. Wireless client's work fine.

My current issue is that wired clients connected to the MAIN Deco are not able to get IP addresses or connect over the network. The network is laid out as:

Modem->Main Deco->TPLink Switch->PC.

I have also tried connecting directly to the Main Deco with a PC. Main deco is in router mode with a static IP from my ISP.

If I connect to a secondary Deco, which I just set up to test, wired connections work fine, IE:

Modem->Main Deco->Secondary Deco (Over wireless backhaul)->Switch->PC.

This is not very helpful, as I dont' have a need to have 2 APs sitting in my office right next to each other. I'm currently suspecting this is a wlan/lan autodetction issue, or something along those lines?

I've ran some wireshark captures while things were connected to the main deco and a DHCP discovery goes unanswered. I set a static IP address within the range of the Deco's IP addresses and an ARP request for the gateway goes unanswered.

I have tried rebooting everything. Different cables. Updated firmware. And all of the above to no avail.

What gives?