@Andrsouzaaa Thanks for the detailed explanation. I haven't enabled Smart Connect. Moreover, based on my understanding, on Wireless it should allow upto 300Mbps in 2.4 GHz band, and upto 867 Mbps...

My main network has 300 Mbps speed. The main router is AC1200 ARCHER C6. With RE305 range extender, which I received today (through Flipkart), has been configured under OneMesh network. I have used...