Comment 31 for bug 1379524

Hey guys, i still having this issue, and i don't know how to solve it.
I have a Lenovo Ideapad Z410 with Ubuntu 16.04.
Mi wireless card is:

Devise:
name: 09:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
descripción: Interfaz inalámbrica
producto: BCM43142 802.11b/g/n
fabricante: Broadcom Corporation
driver: bcmwl-kernel-source 6.30.223.271 (r587334)

I see the same behavior, really low signal, and a lots of connections cuts, interruptions.
I tried the solution provided by Andre Bogus without success.
Please i need some help with it.