Yesterday my main NightHawk router flaked out. I actually had multiple other routers in my house (3 stories plus basement and outbuildings) repeating / extending this router, but I had hoped to replace it with Merlin. As such I acquired 2 68u routers and a 3100. I had these on 384.17 working in ap/repeater mode to the nighthawk. I upgraded the ASUS routers to 386.3.2 yesterday with the aim of making the 3100 the main router and the other 2 aimesh nodes. Long story short I tried multiple times to get this to work but could not add any nodes. I read the forum and tried the various suggestions yesterday. I eventually tried downgrading the 68u routers and was able to get aimesh setup , one 68u is main the other a node both are on 384.17 Merlin but 3100 is on 386.3.2. It is working but I would prefer the 3100 as main. And eventually I want to upgrade to ax supported Merlin and move the 68us to the outbuildings wireless backhual and the 3100 to the basement with Ethernet backhaul. My plan was to increment 68u firmware until issue reappears and also retry 3100 as main as time permits. Anyone else have similar issues? Also any suggestions regarding which of the supported newest ax router options is the best unit to server as the future main router for my aimesh setup are also welcomed. If for some reason my 68us are flaky and stuck at aimesh 1.0 will this hobble my other aimesh 2.0 nodes as I add them?