I have an Unleashed setup with 2 x R510 and 2 x new R550.One of the R510 is the Master.I have 3 x SSIDs (on 2 x frequencies - 2.4 and 5) which push out fine showing 6 x SSIDs on the R510 units.The R550 units only pick up 3 of the SSIDs - eg. with SSI...