What is the most stable firmware now?(ac3200,ac87u)and ac68u?

[Lars]

What is the most stable firmware for now?
Im using merling 378.56_2 on my ac3200 second floor,and my ac87 first floor as ap mode.
My dad using ac68u at home using 378.56_2.
I have 500mbps down and 50mbps upp.
My dad has 100mbps down and 100 mbps upp.
Sometimes i have to reboot my ac3200 router after 10-16days,internett stoops working all led lamps working,no error(no red lamp),seems nothings is wrong just turn off and on its working again?

 

[joegreat]

It's always the same answer: The latest Asus or the latest Merlin (which is even better!) is the most stable firmware available!

Additionally "stability" is not the same for all users: It depends on the use case and features needed. The best way is to test the two firmware versions yourself and you get the right answer from it!