OK, try this...
sudo gedit /etc/modprobe.d/rtl8723be.conf
when a BLANK file opens, add a single line that reads
options rtl8723be fwlps=0 ips=0
SAVE the file and exit gedit
On the offchance that kills your wireless, run:
sudo rm -v /etc/modprobe.d/rtl8723be.conf
and reboot .. and you'll be back to where you are now.