Bilgisayar bir süre boşta bekleyince wifi bağlı olduğu halde internete bağlanmıyor. Siteler açılmıyor. İşletim sistemindeki ayarlardaki wifi düğmesi

ile kapatıp açınca düzeliyor.
NOT: önerilen sürücüyü kullanıyorum. sürüm 6.30.223.271+bdcom-0ubuntu1.1~1.1
inxi -SNnz System: Host: cagdas-Linux-Mint Kernel: 4.4.0-77-generic x86_64 (64 bit)
Desktop: Cinnamon 3.2.7 Distro: Linux Mint 18.1 Serena
Network: Card-1: Broadcom BCM43142 802.11b/g/n driver: wl
IF: wlp7s0 state: up mac: <filter>
Card-2: Qualcomm Atheros QCA8172 Fast Ethernet driver: alx
IF: enp8s0 state: down mac: <filter>
lspci -nnk | grep -iA2 net07:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Lenovo BCM43142 802.11b/g/n [17aa:0611]
Kernel driver in use: wl
--
08:00.0 Ethernet controller [0200]: Qualcomm Atheros QCA8172 Fast Ethernet [1969:10a0] (rev 10)
Subsystem: Qualcomm Atheros QCA8172 Fast Ethernet [1969:1090]
Kernel driver in use: alx
Kernel modules: alx
lsusbBus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 105b:e065 Foxconn International, Inc. BCM43142A0 Bluetooth module
Bus 003 Device 003: ID 5986:0295 Acer, Inc
Bus 003 Device 002: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
rfkill list0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: ideapad_3g: Wireless WAN
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
4: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
5: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
sudo lshw -C network *-network
description: Wireless interface
product: BCM43142 802.11b/g/n
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlp7s0
version: 01
serial: 48:5a:b6:d1:f4:fd
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=192.168.1.35 latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:17 memory:d1500000-d1507fff
*-network
description: Ethernet interface
product: QCA8172 Fast Ethernet
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:08:00.0
logical name: enp8s0
version: 10
serial: 20:25:64:3b:27:c2
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=alx latency=0 link=no multicast=yes port=twisted pair
resources: irq:33 memory:d1400000-d143ffff ioport:3000(size=128)
iwconfig | grep Powerlo no wireless extensions.
enp8s0 no wireless extensions.
Power Management:on
lsmodModule Size Used by
rfcomm 69632 2
bnep 20480 2
binfmt_misc 20480 1
nvidia_uvm 36864 0
nvidia 10571776 1 nvidia_uvm
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
wl 6447104 0
snd_hda_codec_hdmi 53248 1
kvm_intel 172032 0
snd_hda_codec_idt 57344 1
snd_hda_codec_generic 77824 1 snd_hda_codec_idt
btusb 45056 0
kvm 544768 1 kvm_intel
btrtl 16384 1 btusb
uvcvideo 90112 0
btbcm 16384 1 btusb
btintel 16384 1 btusb
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
bluetooth 520192 29 bnep,btbcm,btrtl,btusb,rfcomm,btintel
videobuf2_v4l2 28672 1 uvcvideo
snd_hda_intel 40960 5
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
irqbypass 16384 1 kvm
v4l2_common 16384 1 videobuf2_v4l2
snd_hda_codec 135168 4 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_intel
videodev 176128 4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
snd_hda_core 73728 5 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 1 snd_hda_codec
crct10dif_pclmul 16384 0
media 24576 2 uvcvideo,videodev
crc32_pclmul 16384 0
snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
ghash_clmulni_intel 16384 0
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
aesni_intel 167936 0
snd_rawmidi 32768 1 snd_seq_midi
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
ablk_helper 16384 1 aesni_intel
cryptd 20480 3 ghash_clmulni_intel,aesni_intel,ablk_helper
cfg80211 565248 1 wl
input_leds 16384 0
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
joydev 20480 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
serio_raw 16384 0
snd_timer 32768 2 snd_pcm,snd_seq
snd 81920 21 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
ie31200_edac 16384 0
soundcore 16384 1 snd
mei_me 36864 0
edac_core 53248 1 ie31200_edac
shpchp 36864 0
mei 98304 1 mei_me
lpc_ich 24576 0
ideapad_laptop 24576 0
sparse_keymap 16384 1 ideapad_laptop
wmi 20480 1 ideapad_laptop
soc_button_array 16384 0
mac_hid 16384 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
btrfs 987136 0
xor 24576 1 btrfs
raid6_pq 102400 1 btrfs
dm_mirror 24576 0
dm_region_hash 24576 1 dm_mirror
dm_log 20480 2 dm_region_hash,dm_mirror
uas 24576 0
usb_storage 69632 1 uas
i915 1208320 5
i2c_algo_bit 16384 1 i915
drm_kms_helper 155648 1 i915
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
psmouse 131072 0
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
ahci 36864 4
alx 36864 0
libahci 32768 1 ahci
drm 364544 7 i915,drm_kms_helper,nvidia
mdio 16384 1 alx
video 40960 2 i915,ideapad_laptop
fjes 28672 0