Wifi keeps disconecting on Ubuntu 15.04

Question

I totally new on linux OS, just installed ubuntu yesterday. So far I faced problem with wifi, I'll try explane whats wrong. First, this is info about my wlan card:

*-network
   description: Wireless interface
   product: BCM43142 802.11b/g/n
   vendor: Broadcom Corporation
   physical id: 0
   bus info: pci@0000:03:00.0
   logical name: wlan0
   version: 01
   serial: 30:10:b3:46:31:cf
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) ip=192.168.1.65 latency=0 multicast=yes wireless=IEEE 802.11abg
   resources: irq:19 memory:f7800000-f7807fff

So far I installed drivers using sudo apt-get install bcmwl-kernel-source , also I turned off power management for wlan, now its says OFF when using iwconfig command. Also I tried disabling ipv6. But intresting fact and I dont know if it really this that when I come to my router wifi not disconnecting, but when I go to my room and I get 2-3 bars of signal it starts disconnecting... I dont know, maybe is just coincidence... on windows 10 there was no problem with wifi signal and disconnecting... Maybe its some trigger that for poorer connection it starts disconnecting?

output of rfkill list all :

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: brcmwl-0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: asus-wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: asus-bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no
4: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no

score 0 · Answer 1 · edited Apr 13 '17 at 12:23

First of all , if you are new to Linux , don't mess up or manually install drivers.

I am also using same BCM43142 chip. I just installed Ubuntu 15.04 yesterday after 2 months of continuous use of Ubuntu 14.04 . Instead of manually downloading that drivers , if you used "proprietary" devices given in System-Settings > Software & Updates > Additional Drivers , you wifi chip should work fine. Look at these articles : article1 and article2 . They will probably solve your problem.

Wifi keeps disconecting on Ubuntu 15.04

1 Answers1