I have been running the RT-AC88U for over a month in Merlin 380.67 without even a single wireless hiccup. Not a single drop and amazing range. Before that I was running an old Linksys WRT54GS for over a decade without any issues (other than getting long in the tooth). Then this morning all of my 2.4GHz clients can't connect. I tried restarting the clients (Roku, Google Pixel phones, laptops) and still no joy. So I hit up Google and I see the same complaint with 2.4GHz dropping out going...
RT-AC88U Dropping 2.4Ghz Clients
RT-AC88U Dropping 2.4Ghz Clients