I just got Xiaomi AX3000 mesh set of 2 and I am going to connect them with a wired backhaul. Any tips on the configuration that i need to keep in mind before I start the setup?

I have configured my Mi AX3000 2 units yesterday and was able to get a full 500mbps on both the nodes. This was because I use the wired backhaul. The only headache is that I had to completely reconfigure my network.

Mi AX3000 mesh doesn't work with repeater mode. So my Maxis router IP address and my home network are completely different. Maxis typically has 192.168.1.x but my AX3000 runs on a different subnet. But luck is that both the ranges are able to communicate as the AX3000 works as a router between both the networks.

So I moved all my peripherals into the new network, its just a little bump to move some devices around.

But there is one weird revelation. While my phone and laptops get a full 500mbps, but my LG WebOS based SmartTV only gets about 70mbps at the most. Not sure if it is the TV problem, but wired only gives 30-35mbps while wireless gets 60 to 70mbps.

Yes. It has.