Deco X20 as router with Vodafone THG3000
Moved into a large bungalow with 40 smart bulbs. Add our own smartphones, and two each of laptops, TV, and XBoxes, we're north of 50 devices, some on wifi, some on LAN. And wifi dead spots either end of the house - it's long and low. Had a lot of trouble with devices going offline. Thought it was 2.4GHz band congestion, and that I could overcome it and the dead spots in one go by using three powerline LAN APs I had to hand, set to different channels, each supporting one third of the 2.4GHz smart bulbs. It didn't work - VF Tech support advise THG3000 has limit of 30(?) devices total, not just wifi but wifi AND ethernet combined. So, now we have this shiny Deco X20, which supports up to 150 devices. Couldn't find UK supplier for Deco X20-DSL but saw somewhere that X20's ethernet port is WAN-sensing. Figured I could connect that to the VF VDSL router, turn off the VF router's DHCP and wifi, perhaps expose the Deco in DMZ, and let everything pass through to the Deco. No joy. I've tried plugging it into the LAN port as suggested by the TP-link instructions, and the WAN port as suggested by VF tech support. I've set the connection type to PPPoE, VLAN ID 101, VLAN Priority 0 and I've carefully typed in my VF DSL credentials (thank you VF tech support). Left it as Obtain DNS automatically. Every time Deco lights up red and no WAN connection results. Have tried various things, including changing the Deco's LAN IP from 192.168.68.1 to 192.168.1.x and subnet mask from 255.255.252.0 to the standard 255.255.255.0 I suspect it needs to work with the VF router's LAN. Nothing. Even then I can't even ping it from a laptop wired to the VF router. Swapped out the cable for a known good one, too, still no joy. Anyone had the X20 and THG3000g working, with the X20 as the router? There's no point in me using the Deco in AP mode - not only do I already have APs, I'd still fall foul of the VF router's IP address limit.