Ubuntu: How do I prevent WiFi cycling between connected and disconnected?



Question:

My friend has a Acer Aspire 5733Z-4851 it keeps disconnecting and connecting to his wifi but his hard wire will run just fine. Any suggestions?

All the codes:

lspci:

00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)  00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)  00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)  00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)  00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)  00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)  00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)  00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)  00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)  00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)  00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05)  00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)  00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)  01:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe (rev 01)  02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)  ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)  ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)  ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)  ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)  ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)  ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)  

lsmod:

Module                  Size  Used by  snd_seq_dummy          12798  0  rfcomm                 46619  0  bnep                   18140  2  bluetooth             209199  10 rfcomm,bnep  parport_pc             32688  0  ppdev                  17073  0  lp                     17759  0  parport                46345  3 parport_pc,ppdev,lp  binfmt_misc            17500  1  ums_realtek            17949  0  snd_hda_codec_realtek    77876  1  uas                    17844  0  coretemp               13400  0  snd_hda_intel          33491  4  snd_hda_codec         134212  2 snd_hda_codec_realtek,snd_hda_intel  snd_hwdep              13602  1 snd_hda_codec  snd_pcm                96580  2 snd_hda_intel,snd_hda_codec  snd_seq_midi           13324  0  snd_rawmidi            30512  1 snd_seq_midi  uvcvideo               76749  0  videobuf2_core         32851  1 uvcvideo  videodev              120309  2 uvcvideo,videobuf2_core  videobuf2_vmalloc      12860  1 uvcvideo  videobuf2_memops       13368  1 videobuf2_vmalloc  snd_seq_midi_event     14899  1 snd_seq_midi  snd_seq                61521  3 snd_seq_dummy,snd_seq_midi,snd_seq_midi_event  snd_timer              29425  2 snd_pcm,snd_seq  arc4                   12529  2  snd_seq_device         14497  4 snd_seq_dummy,snd_seq_midi,snd_rawmidi,snd_seq  psmouse                95552  0  ath9k                 131308  0  tg3                   148780  0  snd                    78734  17 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device  microcode              22803  0  mac80211              539908  1 ath9k  ath9k_common           14055  1 ath9k  ath9k_hw              395218  2 ath9k,ath9k_common  ath                    23827  3 ath9k,ath9k_common,ath9k_hw  i915                  520629  3  soundcore              15047  1 snd  serio_raw              13215  0  cfg80211              206566  3 ath9k,mac80211,ath  snd_page_alloc         18484  2 snd_hda_intel,snd_pcm  intel_ips              18049  0  lpc_ich                17061  0  drm_kms_helper         46784  1 i915  drm                   275528  4 i915,drm_kms_helper  mei                    40690  0  i2c_algo_bit           13413  1 i915  joydev                 17457  0  acer_wmi               32453  0  sparse_keymap          13890  1 acer_wmi  mxm_wmi                12979  0  mac_hid                13205  0  wmi                    19070  2 acer_wmi,mxm_wmi  video                  19335  2 i915,acer_wmi  usb_storage            48838  1 ums_realtek  

sudo lshw -C network:

*-network                       description: Ethernet interface         product: NetLink BCM57780 Gigabit Ethernet PCIe         vendor: Broadcom Corporation         physical id: 0         bus info: pci@0000:01:00.0         logical name: eth0         version: 01         serial: b8:70:f4:9a:35:b6         size: 10Mbit/s         capacity: 1Gbit/s         width: 64 bits         clock: 33MHz         capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation         configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.123 duplex=half firmware=sb latency=0 link=no multicast=yes port=MII speed=10Mbit/s         resources: irq:44 memory:d3400000-d340ffff[/QUOTE][QUOTE]*-network         description: Wireless interface         product: AR9285 Wireless Network Adapter (PCI-Express)         vendor: Atheros Communications Inc.         physical id: 0         bus info: pci@0000:02:00.0         logical name: wlan0         version: 01         serial: 68:a3:c4:eb:60:7d         width: 64 bits         clock: 33MHz         capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless         configuration: broadcast=yes driver=ath9k driverversion=3.5.0-19-generic firmware=N/A ip=192.168.0.168 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn         resources: irq:17 memory:d2400000-d240ffff)  


Solution:1

This is a known problem with atheros wi-fi and acer_wmi module.

Try black listing acer_wmi

by pressing Ctrl + Alt + T and pasting the below text in:

echo blacklist acer-wmi | sudo tee /etc/modprobe.d/blacklist-acer-wmi

You can then reboot or enter sudo rmmod acer-wmi

If this doesn't work, and you want to revert back,

remove /etc/modprobe.d/blacklist-acer-wmi (by clicking on your Home Folder, clicking on 'File System' under 'Computer' on the left pane, double-clicking on etc and then modprobe.d and deleting the file 'blacklist-acer-wmi')


Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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