I got a rtl8723be on ubuntu 16.03 running. Wifi dropped every few minutes forcing, I had to re-select the used wifi to force a reconnection. But that's not a solution, so I started to investigate/google around and got the solution here and there.
The solutions is (or better seems as I did not test it yet for a longer time) to add some additional options to the drivers modprobe file.
- edit the file /etc/modprobe.d/rtl8723be.conf and add the following content
#Prevents the WiFi card from automatically sleeping and halting connection options rtl8723be fwlps=0 swlps=0
I used some more options I found on other pages:
options rtl8723be fwlps=0 swlps=0 ips=0 swenc=1
After that undload the file (using
modprobe -r) and reload it (using
modprobe) or just reboot the machine.
...seems to work like a charm.