Lista de Wifi não mostrando (mas pode se conectar) e desktop se comportando assim após a formatação

Question

Depois de formatado para o Ubuntu 16.04, Quando faço login no meu sistema, vejo a lista de wifi disponível, mas depois de algum tempo ou se mudar meu wifi ou reiniciar meu wifi, a lista de wi-fi desaparece, mas fica conectada a um dos wifi disponíveis.

Como posso corrigir esse problema?

sid@sid:~$ sudo lshw -class network
[sudo] password for sid: 
  *-network               
       description: Wireless interface
       product: QCA9565 / AR9565 Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:06:00.0
       logical name: wlp6s0
       version: 01
       serial: b0:10:41:92:8f:83
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=4.4.0-98-generic firmware=N/A ip=192.168.1.104 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:18 memory:f7900000-f797ffff memory:f7980000-f798ffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: enp7s0
       version: 0c
       serial: 74:e6:e2:03:43:07
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:42 ioport:e000(size=256) memory:f7800000-f7800fff memory:f2100000-f2103fff



sid@sid:~$ lsusb
Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 010: ID 0cf3:0036 Atheros Communications, Inc. 
Bus 001 Device 003: ID 1bcf:2b8b Sunplus Innovation Technology Inc. 
Bus 001 Device 011: ID 03f0:0324 Hewlett-Packard SK-2885 keyboard
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 03f0:134a Hewlett-Packard Optical Mouse
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
sid@sid:~$ 

dmesg:

ts-95)
[ 1439.813062] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[ 1439.813069] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 1439.813279] nouveau 0000:08:00.0: DRM: evicting buffers...
[ 1439.813283] nouveau 0000:08:00.0: DRM: waiting for kernel channels to go idle...
[ 1439.813328] nouveau 0000:08:00.0: DRM: suspending client object trees...
[ 1439.813655] nouveau 0000:08:00.0: DRM: suspending kernel object tree...
[ 1470.890593] wlp6s0: deauthenticating from c8:d7:79:7c:62:8f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1470.897683] bridge-wlp6s0: disabling the bridge on dev down
[ 1470.897703] bridge-wlp6s0: down
[ 1470.897712] bridge-wlp6s0: detached
[ 1470.900798] cfg80211: World regulatory domain updated:
[ 1470.900802] cfg80211:  DFS Master region: unset
[ 1470.900804] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1470.900807] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1470.900809] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1470.900811] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 1470.900813] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 1470.900816] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 1470.900818] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 1470.900820] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 1470.900822] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 1471.097726] userif-2: sent link down event.
[ 1471.097731] userif-2: sent link up event.
[ 1471.866705] wlp6s0: authenticate with 0c:f4:d5:19:b4:08
[ 1471.883022] wlp6s0: send auth to 0c:f4:d5:19:b4:08 (try 1/3)
[ 1471.885021] wlp6s0: authenticated
[ 1471.889003] wlp6s0: associate with 0c:f4:d5:19:b4:08 (try 1/3)
[ 1471.911610] wlp6s0: RX AssocResp from 0c:f4:d5:19:b4:08 (capab=0x431 status=0 aid=2)
[ 1471.911670] wlp6s0: associated
[ 1472.022867] /dev/vmnet: open called by PID 1668 (vmnet-bridge)
[ 1472.022879] /dev/vmnet: hub 0 does not exist, allocating memory.
[ 1472.022899] /dev/vmnet: port on hub 0 successfully opened
[ 1472.022909] bridge-wlp6s0: device is wireless, enabling SMAC
[ 1472.022911] bridge-wlp6s0: up
[ 1472.022915] bridge-wlp6s0: attached
[ 1472.222792] userif-2: sent link down event.
[ 1472.222797] userif-2: sent link up event.
[ 1697.892678] wlp6s0: deauthenticating from 0c:f4:d5:19:b4:08 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1697.899987] bridge-wlp6s0: disabling the bridge on dev down
[ 1697.900005] bridge-wlp6s0: down
[ 1697.900013] bridge-wlp6s0: detached
[ 1697.904034] cfg80211: World regulatory domain updated:
[ 1697.904039] cfg80211:  DFS Master region: unset
[ 1697.904041] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1697.904044] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1697.904046] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1697.904048] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 1697.904051] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 1697.904054] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 1697.904056] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 1697.904058] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 1697.904061] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 1698.092617] userif-2: sent link down event.
[ 1698.092622] userif-2: sent link up event.
[ 1698.855630] wlp6s0: authenticate with c8:d7:79:7c:62:8f
[ 1698.872551] wlp6s0: send auth to c8:d7:79:7c:62:8f (try 1/3)
[ 1698.875388] wlp6s0: authenticated
[ 1698.880048] wlp6s0: associate with c8:d7:79:7c:62:8f (try 1/3)
[ 1698.885467] wlp6s0: RX AssocResp from c8:d7:79:7c:62:8f (capab=0x411 status=0 aid=3)
[ 1698.885548] wlp6s0: associated
[ 1698.894144] /dev/vmnet: open called by PID 1668 (vmnet-bridge)
[ 1698.894160] /dev/vmnet: hub 0 does not exist, allocating memory.
[ 1698.894186] /dev/vmnet: port on hub 0 successfully opened
[ 1698.894198] bridge-wlp6s0: device is wireless, enabling SMAC
[ 1698.894202] bridge-wlp6s0: up
[ 1698.894214] bridge-wlp6s0: attached
[ 1699.094093] userif-2: sent link down event.
[ 1699.094098] userif-2: sent link up event.
[ 1699.695544] userif-2: sent link down event.
[ 1699.695547] userif-2: sent link up event.
[ 1804.677149] wlp6s0: deauthenticating from c8:d7:79:7c:62:8f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1804.691614] bridge-wlp6s0: disabling the bridge on dev down
[ 1804.692434] bridge-wlp6s0: down
[ 1804.693315] bridge-wlp6s0: detached
[ 1804.696160] cfg80211: World regulatory domain updated:
[ 1804.696163] cfg80211:  DFS Master region: unset
[ 1804.696164] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1804.696166] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1804.696167] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 1804.696168] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 1804.696170] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 1804.696171] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 1804.696172] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 1804.696173] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 1804.696174] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 1804.891373] userif-2: sent link down event.
[ 1804.891378] userif-2: sent link up event.
[ 1809.071412] IPv6: ADDRCONF(NETDEV_UP): wlp6s0: link is not ready
[ 1809.109239] IPv6: ADDRCONF(NETDEV_UP): wlp6s0: link is not ready
[ 1811.025683] wlp6s0: authenticate with c8:d7:79:7c:62:8f
[ 1811.042678] wlp6s0: send auth to c8:d7:79:7c:62:8f (try 1/3)
[ 1811.045798] wlp6s0: authenticated
[ 1811.047689] wlp6s0: associate with c8:d7:79:7c:62:8f (try 1/3)
[ 1811.054618] wlp6s0: RX AssocResp from c8:d7:79:7c:62:8f (capab=0x411 status=0 aid=3)
[ 1811.054707] wlp6s0: associated
[ 1811.054719] IPv6: ADDRCONF(NETDEV_CHANGE): wlp6s0: link becomes ready
[ 1811.065686] /dev/vmnet: open called by PID 1668 (vmnet-bridge)
[ 1811.065700] /dev/vmnet: hub 0 does not exist, allocating memory.
[ 1811.065731] /dev/vmnet: port on hub 0 successfully opened
[ 1811.065743] bridge-wlp6s0: device is wireless, enabling SMAC
[ 1811.065747] bridge-wlp6s0: up
[ 1811.065752] bridge-wlp6s0: attached
[ 1811.265775] userif-2: sent link down event.
[ 1811.265778] userif-2: sent link up event.
[ 1814.576194] userif-2: sent link down event.
[ 1814.576199] userif-2: sent link up event.
[ 2058.481581] /dev/vmmon[0]: HostIFReadUptimeWork: detected settimeofday: fixed uptimeBase old 18445233935688305793 new 18445233935689365239 attempts 1
[ 2408.312928] nouveau 0000:08:00.0: DRM: resuming kernel object tree...
[ 2408.441229] nouveau 0000:08:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]
[ 2408.442140] nouveau 0000:08:00.0: DRM: resuming client object trees...
[ 2413.762682] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 2413.763069] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[ 2413.763075] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 2413.763289] nouveau 0000:08:00.0: DRM: evicting buffers...
[ 2413.763292] nouveau 0000:08:00.0: DRM: waiting for kernel channels to go idle...
[ 2413.763334] nouveau 0000:08:00.0: DRM: suspending client object trees...
[ 2413.763710] nouveau 0000:08:00.0: DRM: suspending kernel object tree...
[ 2667.789197] nouveau 0000:08:00.0: DRM: resuming kernel object tree...
[ 2667.915803] nouveau 0000:08:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]
[ 2667.915959] nouveau 0000:08:00.0: bus: MMIO write of badf1001 FAULT at 50405c [ IBUS ]
[ 2667.916920] nouveau 0000:08:00.0: DRM: resuming client object trees...
[ 2672.916415] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 2672.916792] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[ 2672.916797] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 2672.916959] nouveau 0000:08:00.0: DRM: evicting buffers...