I have 2 AX6000 routers that I want to use as 2 separate LANs sharing a single WAN connection. Connecting one to the other is not possible cable-wise, so they need to be in a Y configuration from the WAN line. I tried using a Ubiquity EdgeRouter for this, but couldnt get the configuration to work with the AX6000s. Thinking that staying in the TP-Link family would increase the chances of getting this to work. A regular unmanaged switch didnt work. So my guess is the TL-SG105E may be correct smart switch to use. Any help would be appreciated.