1

I just installed Ubuntu 18.04.1 on my Lenovo E520 yesterday and I have this issue since i tried to connect to WiFi , WiFi connects and everything is ok but after some time (sometimes minutes, sometimes seconds) the connection gets lost! I searched for the problem and understood that when I type rfkill list all in my terminal I got this:

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: yes
    Hard blocked: no

I realized that all of them must be "no" but as you can see "Wireless LAN" is "yes" , I tried to make it "no" by typing this sudo rfkill unblock all but it works just for few minutes then turning back to "yes" again! I don't know what to do

Here is my lspci-output :

lspci -knn | grep Net -A3
08:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [Condor Peak] [8086:0084]
    Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN [8086:1315]
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi

Wireless script result when i type this :

wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info i got :

`--2018-12-19 22:54:28--  https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info
Resolving github.com (github.com)... 192.30.253.112, 192.30.253.113
Connecting to github.com (github.com)|192.30.253.112|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/UbuntuForums/wireless-info/master/wireless-info [following]
--2018-12-19 22:54:30--  https://raw.githubusercontent.com/UbuntuForums/wireless-info/master/wireless-info
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.112.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.112.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17452 (17K) [text/plain]
Saving to: ‘wireless-info’

wireless-info 100%[===================>] 17.04K 68.1KB/s in 0.3s

Last-modified header missing -- time-stamps turned off. 2018-12-19 22:54:32 (68.1 KB/s) - ‘wireless-info’ saved [17452/17452]

` and :

chmod +x wireless-info &&

./wireless-info [sudo] password for saeed:

Results saved in "/home/saeed/wireless-info.txt".

Results also archived in "/home/saeed/wireless-info.tar.gz", as they exceed the 19.5 kB size limit for ".txt" attachments on the Ubuntu Forums.

and also when i type this : cat wireless-info.txt i got :

    ########## wireless info START ##########

Report from: 19 Dec 2018 22:59 +0330 +0330

Booted last: 19 Dec 2018 00:00 +0330 +0330

Script from: 22 Oct 2018 03:34 UTC +0000

release

Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic

kernel

Linux 4.15.0-42-generic #45-Ubuntu SMP Thu Nov 15 19:32:57 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=1

desktop

Ubuntu

lspci

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06) Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:21e2] Kernel driver in use: r8169

08:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [Condor Peak] [8086:0084] Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN [8086:1315] Kernel driver in use: iwlwifi

lsusb

Bus 002 Device 004: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1) Bus 002 Device 003: ID 147e:1002 Upek Biometric Touchchip/Touchstrip Fingerprint Sensor Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 004: ID 5986:03b3 Acer, Inc Bus 001 Device 003: ID 093a:2516 Pixart Imaging, Inc. Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

PCMCIA card info rfkill

0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: tpacpi_bluetooth_sw: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: yes Hard blocked: no

secure boot

'mokutil' is not installed (package "mokutil").

lsmod

iwldvm 229376 0 mac80211 778240 1 iwldvm iwlwifi 282624 1 iwldvm cfg80211 622592 3 iwldvm,iwlwifi,mac80211

interfaces

[/etc/network/interfaces] auto lo iface lo inet loopback

ifconfig

1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback brd inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp2s0: mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether brd inet 192.168.1.2/24 brd 192.168.1.255 scope global dynamic noprefixroute enp2s0 valid_lft 86042sec preferred_lft 86042sec inet6 fe80::6cf8:ec8:7457:d74d/64 scope link noprefixroute valid_lft forever preferred_lft forever 3: wlp8s0: mtu 1500 qdisc mq state DOWN group default qlen 1000 link/ether brd

iwconfig

enp2s0 no wireless extensions.

lo no wireless extensions.

wlp8s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off

route

default via 192.168.1.1 dev enp2s0 proto dhcp metric 20100 169.254.0.0/16 dev enp2s0 scope link metric 1000 192.168.1.0/24 dev enp2s0 proto kernel scope link src 192.168.1.2 metric 100

resolv.conf

[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']

nameserver 127.0.0.53 search domain.name

network managers

Installed:

NetworkManager

Running:

root 793 1 0 22:45 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon

NetworkManager info

GENERAL.DEVICE: enp2s0 GENERAL.TYPE: ethernet GENERAL.NM-TYPE: NMDeviceEthernet GENERAL.VENDOR: Realtek Semiconductor Co., Ltd. GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller GENERAL.DRIVER: r8169 GENERAL.DRIVER-VERSION: 2.3LK-NAPI GENERAL.FIRMWARE-VERSION: -- GENERAL.HWADDR: GENERAL.MTU: 1500 GENERAL.STATE: 100 (connected) GENERAL.REASON: 0 (No reason given) GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.1/0000:02:00.0/net/enp2s0 GENERAL.IP-IFACE: enp2s0 GENERAL.IS-SOFTWARE: no GENERAL.NM-MANAGED: yes GENERAL.AUTOCONNECT: yes GENERAL.FIRMWARE-MISSING: no GENERAL.NM-PLUGIN-MISSING: no GENERAL.PHYS-PORT-ID: -- GENERAL.CONNECTION: Wired connection 1 GENERAL.CON-UUID: 97cce32f-3df9-3970-a98e-435e94206f8b GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/5 GENERAL.METERED: no (guessed) CAPABILITIES.CARRIER-DETECT: yes CAPABILITIES.SPEED: 100 Mb/s CAPABILITIES.IS-SOFTWARE: no CAPABILITIES.SRIOV: no WIRED-PROPERTIES.CARRIER: on IP4.ADDRESS[1]: 192.168.1.2/24 IP4.GATEWAY: 192.168.1.1 IP4.ROUTE[1]: dst = 0.0.0.0/0, nh = 192.168.1.1, mt = 20100 IP4.ROUTE[2]: dst = 192.168.1.0/24, nh = 0.0.0.0, mt = 100 IP4.ROUTE[3]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000 IP4.DNS[1]: 85.15.1.14 IP4.DNS[2]: 85.15.1.15 IP4.DOMAIN[1]: domain.name DHCP4.OPTION[1]: requested_host_name = 1 DHCP4.OPTION[2]: requested_domain_search = 1 DHCP4.OPTION[3]: requested_time_offset = 1 DHCP4.OPTION[4]: requested_domain_name = 1 DHCP4.OPTION[5]: requested_rfc3442_classless_static_routes = 1 DHCP4.OPTION[6]: requested_broadcast_address = 1 DHCP4.OPTION[7]: requested_netbios_scope = 1 DHCP4.OPTION[8]: expiry = 1545333793 DHCP4.OPTION[9]: next_server = 0.0.0.0 DHCP4.OPTION[10]: domain_name = domain.name DHCP4.OPTION[11]: requested_interface_mtu = 1 DHCP4.OPTION[12]: dhcp_message_type = 5 DHCP4.OPTION[13]: requested_wpad = 1 DHCP4.OPTION[14]: ip_address = 192.168.1.2 DHCP4.OPTION[15]: requested_subnet_mask = 1 DHCP4.OPTION[16]: requested_static_routes = 1 DHCP4.OPTION[17]: subnet_mask = 255.255.255.0 DHCP4.OPTION[18]: routers = 192.168.1.1 DHCP4.OPTION[19]: broadcast_address = 192.168.1.255 DHCP4.OPTION[20]: requested_ntp_servers = 1 DHCP4.OPTION[21]: requested_netbios_name_servers = 1 DHCP4.OPTION[22]: dhcp_lease_time = 86400 DHCP4.OPTION[23]: domain_name_servers = 85.15.1.14 85.15.1.15 DHCP4.OPTION[24]: requested_routers = 1 DHCP4.OPTION[25]: requested_domain_name_servers = 1 DHCP4.OPTION[26]: requested_ms_classless_static_routes = 1 DHCP4.OPTION[27]: network_number = 192.168.1.0 DHCP4.OPTION[28]: dhcp_server_identifier = 192.168.1.1 IP6.ADDRESS[1]: fe80::6cf8:ec8:7457:d74d/64 IP6.GATEWAY: fe80::76da:daff:fe76:dae9 IP6.ROUTE[1]: dst = ::/0, nh = fe80::76da:daff:fe76:dae9, mt = 20100 IP6.ROUTE[2]: dst = ff00::/8, nh = ::, mt = 256, table=255 IP6.ROUTE[3]: dst = fe80::/64, nh = ::, mt = 256 IP6.ROUTE[4]: dst = fe80::/64, nh = ::, mt = 100 CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{4} CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 97cce32f-3df9-3970-a98e-435e94206f8b | Wired connection 1

GENERAL.DEVICE: wlp8s0 GENERAL.TYPE: wifi GENERAL.NM-TYPE: NMDeviceWifi GENERAL.VENDOR: Intel Corporation GENERAL.PRODUCT: Centrino Wireless-N 1000 [Condor Peak] (Centrino Wireless-N 1000 BGN) GENERAL.DRIVER: iwlwifi GENERAL.DRIVER-VERSION: 4.15.0-42-generic GENERAL.FIRMWARE-VERSION: 39.31.5.1 build 35138 GENERAL.HWADDR: GENERAL.MTU: 1500 GENERAL.STATE: 20 (unavailable) GENERAL.REASON: 0 (No reason given) GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.3/0000:08:00.0/net/wlp8s0 GENERAL.IP-IFACE: -- GENERAL.IS-SOFTWARE: no GENERAL.NM-MANAGED: yes GENERAL.AUTOCONNECT: yes GENERAL.FIRMWARE-MISSING: no GENERAL.NM-PLUGIN-MISSING: no GENERAL.PHYS-PORT-ID: -- GENERAL.CONNECTION: -- GENERAL.CON-UUID: -- GENERAL.CON-PATH: -- GENERAL.METERED: unknown CAPABILITIES.CARRIER-DETECT: no CAPABILITIES.SPEED: unknown CAPABILITIES.IS-SOFTWARE: no CAPABILITIES.SRIOV: no WIFI-PROPERTIES.WEP: yes WIFI-PROPERTIES.WPA: yes WIFI-PROPERTIES.WPA2: yes WIFI-PROPERTIES.TKIP: yes WIFI-PROPERTIES.CCMP: yes WIFI-PROPERTIES.AP: no WIFI-PROPERTIES.ADHOC: yes WIFI-PROPERTIES.2GHZ: yes WIFI-PROPERTIES.5GHZ: no CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --

SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE IN-USE

NetworkManager.state

[main] NetworkingEnabled=true WirelessEnabled=false WWANEnabled=true

NetworkManager config

[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]] [connection] wifi.powersave = 2

[[/etc/NetworkManager/NetworkManager.conf]] [main] plugins=ifupdown,keyfile [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no

[[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]] [main] dns=systemd-resolved

[[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]] [keyfile] unmanaged-devices=*,except:type:wifi,except:type:wwan

[[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]] [connectivity] uri=http://connectivity-check.ubuntu.com/

[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]] [device-mac-addr-change-wifi] match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl wifi.scan-rand-mac-address=no wifi.cloned-mac-address=preserve ethernet.cloned-mac-address=preserve

NetworkManager profiles

[[/etc/NetworkManager/system-connections/Saeed]] (600 root) [connection] id=Saeed | type=wifi | permissions= [wifi] mac-address= | mac-address-blacklist= | ssid=Saeed [ipv4] method=auto [ipv6] method=auto

[[/etc/NetworkManager/system-connections/iPhone]] (600 root) [connection] id=iPhone | type=wifi | permissions= [wifi] mac-address= | mac-address-blacklist= | ssid=iPhone [ipv4] method=auto [ipv6] method=auto

Netplan config

[/etc/netplan/01-network-manager-all.yaml] network: version: 2 renderer: NetworkManager

iw reg get

Region: Asia/Tehran (based on set time zone)

global country 00: DFS-UNSET (2402 - 2472 @ 40), (N/A, 20), (N/A) (2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN (5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN (57240 - 63720 @ 2160), (N/A, 0), (N/A)

iwlist channels

enp2s0 no frequency information.

lo no frequency information.

wlp8s0 13 channels in total; available frequencies : Channel 01 : 2.412 GHz Channel 02 : 2.417 GHz Channel 03 : 2.422 GHz Channel 04 : 2.427 GHz Channel 05 : 2.432 GHz Channel 06 : 2.437 GHz Channel 07 : 2.442 GHz Channel 08 : 2.447 GHz Channel 09 : 2.452 GHz Channel 10 : 2.457 GHz Channel 11 : 2.462 GHz Channel 12 : 2.467 GHz Channel 13 : 2.472 GHz

iwlist scan

wlp8s0 Interface doesn't support scanning : Network is down

enp2s0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

module infos

[iwldvm] filename: /lib/modules/4.15.0-42-generic/kernel/drivers/net/wireless/intel/iwlwifi/dvm/iwldvm.ko license: GPL author: Copyright(c) 2003- 2015 Intel Corporation description: Intel(R) Wireless WiFi Link AGN driver for Linux srcversion: 5144A889CD9311D5F87BAC3 depends: mac80211,iwlwifi,cfg80211 retpoline: Y intree: Y name: iwldvm vermagic: 4.15.0-42-generic SMP mod_unload signat: PKCS#7 signer:
sig_key:
sig_hashalgo: md4 parm: force_cam:force continuously aware mode (no power saving at all) (bool)

[mac80211] filename: /lib/modules/4.15.0-42-generic/kernel/net/mac80211/mac80211.ko license: GPL description: IEEE 802.11 subsystem srcversion: 10B87D6D65DDD085D1326C9 depends: cfg80211 retpoline: Y intree: Y name: mac80211 vermagic: 4.15.0-42-generic SMP mod_unload signat: PKCS#7 signer:
sig_key:
sig_hashalgo: md4 parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool) parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int) parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int) parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int) parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int) parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[iwlwifi] filename: /lib/modules/4.15.0-42-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko license: GPL author: Copyright(c) 2003- 2015 Intel Corporation description: Intel(R) Wireless WiFi driver for Linux firmware: iwlwifi-100-5.ucode firmware: iwlwifi-1000-5.ucode firmware: iwlwifi-135-6.ucode firmware: iwlwifi-105-6.ucode firmware: iwlwifi-2030-6.ucode firmware: iwlwifi-2000-6.ucode firmware: iwlwifi-5150-2.ucode firmware: iwlwifi-5000-5.ucode firmware: iwlwifi-6000g2b-6.ucode firmware: iwlwifi-6000g2a-6.ucode firmware: iwlwifi-6050-5.ucode firmware: iwlwifi-6000-6.ucode firmware: iwlwifi-7265D-29.ucode firmware: iwlwifi-7265-17.ucode firmware: iwlwifi-3168-29.ucode firmware: iwlwifi-3160-17.ucode firmware: iwlwifi-7260-17.ucode firmware: iwlwifi-8265-34.ucode firmware: iwlwifi-8000C-34.ucode firmware: iwlwifi-9260-th-b0-jf-b0-34.ucode firmware: iwlwifi-9260-th-a0-jf-a0-34.ucode firmware: iwlwifi-9000-pu-a0-jf-b0-34.ucode firmware: iwlwifi-9000-pu-b0-jf-b0-34.ucode firmware: iwlwifi-9000-pu-a0-jf-a0-34.ucode firmware: iwlwifi-QuQnj-a0-hr-a0-34.ucode firmware: iwlwifi-QuQnj-a0-jf-b0-34.ucode firmware: iwlwifi-QuQnj-f0-hr-a0-34.ucode firmware: iwlwifi-Qu-a0-jf-b0-34.ucode firmware: iwlwifi-Qu-a0-hr-a0-34.ucode srcversion: 773231C3AA2E3CAB7CBD42B depends: cfg80211 retpoline: Y intree: Y name: iwlwifi vermagic: 4.15.0-42-generic SMP mod_unload signat: PKCS#7 signer:
sig_key:
sig_hashalgo: md4 parm: swcrypto:using crypto in software (default 0 [hardware]) (int) parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint) parm: amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0) (int) parm: fw_restart:restart firmware in case of error (default true) (bool) parm: antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int) parm: nvm_file:NVM file name (charp) parm: d0i3_disable:disable d0i3 functionality (default: Y) (bool) parm: lar_disable:disable LAR functionality (default: N) (bool) parm: uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint) parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool) parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int) parm: power_save:enable WiFi power management (default: disable) (bool) parm: power_level:default power save level (range from 1 - 5, default: 1) (int) parm: fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool) parm: d0i3_timeout:Timeout to D0i3 entry when idle (ms) (uint) parm: disable_11ac:Disable VHT capabilities (default: false) (bool)

[cfg80211] filename: /lib/modules/4.15.0-42-generic/kernel/net/wireless/cfg80211.ko description: wireless configuration support license: GPL author: Johannes Berg srcversion: 62FD05DCC5AEEA290640C3D depends:
retpoline: Y intree: Y name: cfg80211 vermagic: 4.15.0-42-generic SMP mod_unload signat: PKCS#7 signer:
sig_key:
sig_hashalgo: md4 parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int) parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp) parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

module parameters

[iwldvm] force_cam: Y

[mac80211] beacon_loss_count: 7 ieee80211_default_rc_algo: minstrel_ht max_nullfunc_tries: 2 max_probe_tries: 5 minstrel_vht_only: Y probe_wait_ms: 500

[iwlwifi] 11n_disable: 0 amsdu_size: 0 antenna_coupling: 0 bt_coex_active: Y d0i3_disable: Y d0i3_timeout: 1000 disable_11ac: N fw_monitor: N fw_restart: Y lar_disable: N led_mode: 0 nvm_file: (null) power_level: 0 power_save: N swcrypto: 0 uapsd_disable: 3

[cfg80211] bss_entries_limit: 1000 cfg80211_disable_40mhz_24ghz: N ieee80211_regdom: 00

/etc/modules modprobe options

[/etc/modprobe.d/amd64-microcode-blacklist.conf] blacklist microcode

[/etc/modprobe.d/blacklist-ath_pci.conf] blacklist ath_pci

[/etc/modprobe.d/blacklist.conf] blacklist evbug blacklist usbmouse blacklist usbkbd blacklist eepro100 blacklist de4x5 blacklist eth1394 blacklist snd_intel8x0m blacklist snd_aw2 blacklist prism54 blacklist bcm43xx blacklist garmin_gps blacklist asus_acpi blacklist snd_pcsp blacklist pcspkr blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf] alias net-pf-3 off alias net-pf-6 off alias net-pf-9 off alias net-pf-11 off alias net-pf-12 off alias net-pf-19 off alias net-pf-21 off alias net-pf-36 off

[/etc/modprobe.d/intel-microcode-blacklist.conf] blacklist microcode

[/etc/modprobe.d/iwlwifi.conf] remove iwlwifi \ (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \ && /sbin/modprobe -r mac80211

rc.local

grep: /etc/rc.local: No such file or directory

pm-utils udev rules dmesg

[ 17.809595] iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control [ 18.000321] iwlwifi 0000:08:00.0: loaded firmware version 39.31.5.1 build 35138 op_mode iwldvm [ 18.027511] iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled [ 18.027514] iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled [ 18.027515] iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled [ 18.027517] iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C [ 18.070909] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 18.369621] iwlwifi 0000:08:00.0 wlp8s0: renamed from wlan0 [ 30.450705] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready [ 30.698802] r8169 0000:02:00.0 enp2s0: link down [ 30.698897] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready [ 30.739108] IPv6: ADDRCONF(NETDEV_UP): wlp8s0: link is not ready [ 83.047651] iwlwifi 0000:08:00.0: Radio type=0x0-0x0-0x3 (repeated 2 times) [ 83.151089] IPv6: ADDRCONF(NETDEV_UP): wlp8s0: link is not ready (repeated 2 times) [ 83.862520] wlp8s0: authenticate with [ 83.866873] wlp8s0: send auth to (try 1/3) [ 83.869198] wlp8s0: authenticated [ 83.869447] wlp8s0: waiting for beacon from [ 83.928167] wlp8s0: associate with (try 1/3) [ 83.935936] wlp8s0: RX AssocResp from (capab=0x411 status=0 aid=4) [ 83.948506] wlp8s0: associated [ 84.055005] IPv6: ADDRCONF(NETDEV_CHANGE): wlp8s0: link becomes ready [ 420.823012] wlp8s0: deauthenticating from by local choice (Reason: 3=DEAUTH_LEAVING) [ 421.313490] wlp8s0: authenticate with [ 421.317148] wlp8s0: send auth to (try 1/3) [ 421.318899] wlp8s0: authenticated [ 421.319751] wlp8s0: associate with (try 1/3) [ 421.324047] wlp8s0: RX AssocResp from (capab=0x411 status=0 aid=4) [ 421.328298] wlp8s0: associated [ 496.549637] wlp8s0: deauthenticating from by local choice (Reason: 3=DEAUTH_LEAVING) [ 507.318336] r8169 0000:02:00.0 enp2s0: link up [ 507.318346] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s0: link becomes ready

#### wireless info END ############
1

After a long time searching and asking finally my problem solved by fixing DNS on my internet. So here is the solution:

First save this codes as .sh file (it's a DNS fixer file) on your desktop (you can name the file whatever you want) :

#!/bin/bash 
##start Local net Cheking
var1=`ip addr | grep brd | wc -l`
var2=`ip addr | awk {'print $1'} | grep : | wc -l`
if [ "$var1" == "$var2" ];then
echo -e "\033[91m[-]Your Are Offline!!!"
exit 1
else
echo -e "\033[92m[+]Your Local Netowkr Is Ok!."
##start internet Checking
ping -c2 -w2 8.8.8.8 1>/dev/null 2>/dev/null
if [ "$?" != "0" ];then
    echo -e "\033[91m[-]You Have Internet ERROR! CHECK THAT."
    exit 1
    else
    echo -e "\033[92m[+]Your Internet Is OK!"
    ##Start DNS Checking
    nslookup gnu.org -timeout=1 1>/dev/null 2>/dev/null 
    if [ "$?" != "0" ];then
        echo -e "\033[91m[-]You Have Dns ERROR! "
        read -p "I cat To Ok That, Do You Want To Contniue?[Y/n] " yesorno
        if [ "$yesorno" == "Y" ] || [ "$yesorno" == "y" ] || [ "$yesorno" == 
        "" ];then
            echo -e "nameserver 208.67.222.222\nnameserver 8.8.8.8" | sudo tee 
            /etc/resolvconf/resolv.conf.d/tail 1>/dev/null
            sudo systemctl restart NetworkManager
            else
            echo "Ok, You Need To Fix it." 
            exit 1
            fi
            else
            echo -e "\033[92m[+]Your DNS Is OK!"
            exit 0
            fi
            ##End Of DNS Checking.
            fi
            ##End of internet checking
            fi
            ##End Of Localnet checking

After that open your Terminal follow the codes below step by step:

cd Desktop
chmod +x FileName.sh
./FileName
reboot

Hope It works for you

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