@R1D2 I drew a diagram in a previous posting: Servers -- CP201_Access_point ---air----CP210_Client---switch----Me So, "Me" is my computer. I have two pings running. One is to the "CP210_Client",...

OK: Thanks. At this point are the dropouts my main concern and unfortunately would going 5GHz mean that I need to change devices, right? As for dropouts, what I mean is that the unit closest to me...

@AndersG Update: Turning off MaxStream led to a marked improvement both in speed and stability?

This is a point to point link between two buildings. It is approx 300m and line of sight. Problem is that the link drops perhaps once a minute. I have a ping runing for a computer at the other end....