It's not really a secret. Reeflink is garbage. I made the same mistake as well, not reading and taking seriously the myriad of complaints against this useless 100 dollar paperweight. Mine is 8 feet from my radions in line of sight and 11 feet from my orbi. On the rare occasion I CAN actually connect both the connection to the lights is "excellent" and the wifi signal at this distance isn't worth someone trying to argue about.
What I've come to believe is that this is just garbage servers failing to establish and keep alive connections. I have to unplug the unit and plug it back in to get a blue circle, then I STILL don't have a connection until ecotech servers decide they have room for me and put the connection through.
What I've gotten from ecotech is a "first contact" service reply, then you get blown off.
This is what you get when a company dupes enough people into buying their overpriced garbage that they have enough working capital to put on a great media show that keeps new people buying into their hype. I have 4 xr30 gen 4s. Over 3k given away to a company that couldn't care less about their products working correctly or not, at least the reeflink anyway. At this point my lights work as expected, although I can't make adjustments for new corals etc. unless I screw with it, wait an undetermined amount of time and constantly keep checking to see if they'll let me connect to my 3 thousand dollar'sworth of lights I bought from them.
Now it's another 125 bucks to spend on a second solution that may or may not work any better.
I guess it pays to keep in mind these are littleguy companies mostly run by enthusiasts turned manufacturer. In this niche they don't have to worry about damaging their reputation so much because it obviously doesn't harm their sales enough to be of concern. These companies could dry up tomorrow if the wind blows wrong in the economy.
Our lesson to learn next time around. But they've already got our money don't they? They don't really expect repeat business I guess.