Wifi Blues

[Oderus]

Hi. My Wifi has been troublesome for months... I can connect no problem for about 1-2 minutes then the internet drops out but does not disconnect. I must disconnect and reconnect manually. All other devices in my residence work perfectly, and the Wifi works just fine when i dual boot windows. Would really love some help with this as it has been very troublesome.

[vinnywright]

could you post the output of

lspci -v | grep -A 7 Network

so we can see what wifi card you have .

VINNY

[Oderus]

could you post the output of

lspci -v | grep -A 7 Network

so we can see what wifi card you have .

VINNY

Certainly and thank you for the reply. Requested information is as follows.

tweak@AmigaBuntu:~$ lspci -v | grep -A 7 Network
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 27
I/O ports at c800 [size=256]
Memory at fe9fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: rtl8821ae
Kernel modules: rtl8821ae

Edit: incase you need those capabilities I ran the command sudo.

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 27
I/O ports at c800 [size=256]
Memory at fe9fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting

[vinnywright]

Certainly and thank you for the reply. Requested information is as follows.

tweak@AmigaBuntu:~$ lspci -v | grep -A 7 Network
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 27
I/O ports at c800 [size=256]
Memory at fe9fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: rtl8821ae
Kernel modules: rtl8821ae

Edit: incase you need those capabilities I ran the command sudo.

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 27
I/O ports at c800 [size=256]
Memory at fe9fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting

well I just wanted to see if it was a broadcom chip ,,,I thought it sounded like a problem I remember with them ,

but this little bit of info will help some one that may know of Realtek issues ,,,,,,

VINNY

[Oderus]

Additional info that may help

nmcli dev

DEVICE TYPE STATE CONNECTION
wlp2s0 wifi connected KTL
eth0 ethernet unavailable --
lo loopback unmanaged --

sudo lshw -class network
*-network
description: Wireless interface
product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 01
serial: 48:ee:0c:f2:b0:3a
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8821ae driverversion=4.4.0-67-generic firmware=N/A ip=192.168.0.17 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:27 ioport:c800(size=256) memory:fe9fc000-fe9fffff

[Snowhog]

See https://www.kubuntuforums.net/showth...l=1#post397325

[stephen46710]

You can also try downloading the deb package from the following link if all else fails:

https://packages.debian.org/sid/all/...altek/download

See the following page for more info:

https://packages.debian.org/sid/firmware-realtek

[Oderus]

See https://www.kubuntuforums.net/showth...l=1#post397325

best i can come up with is the info tool...

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

Report from: 26 Mar 2017 12:47 EDT -0400

Booted last: 26 Mar 2017 00:00 EDT -0400

Script from: 25 Mar 2017 07:04 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial

##### kernel ############################

Linux 4.4.0-67-generic #88-Ubuntu SMP Wed Mar 8 16:34:45 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash

##### desktop ###########################

/usr/share/xsessions/plasma

##### lspci #############################

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter [10ec:8812] (rev 01)
Subsystem: D-Link System Inc RTL8812AE 802.11ac PCIe Wireless Network Adapter [1186:3305]
Kernel driver in use: rtl8821ae

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 03)
Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:2a92]
Kernel driver in use: r8169

##### lsusb #############################

Bus 007 Device 003: ID 1c4f:0016 SiGma Micro
Bus 007 Device 004: ID 1c4f:0003 SiGma Micro HID controller
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 0bda:0151 Realtek Semiconductor Corp. Mass Storage Device (Multicard Reader)
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 0d8c:0008 C-Media Electronics, Inc.
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 19ff:0102 Dynex 1.3MP Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 08bb:29c0 Texas Instruments PCM2900C Audio CODEC
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

##### lsmod #############################

rtl8821ae 225280 0
btcoexist 53248 1 rtl8821ae
rtl_pci 28672 1 rtl8821ae
rtlwifi 77824 2 rtl_pci,rtl8821ae
mac80211 737280 3 rtl_pci,rtlwifi,rtl8821ae
cfg80211 565248 2 mac80211,rtlwifi
wmi 20480 0

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF1]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1680 errors:0 dropped:0 overruns:0 frame:0
TX packets:1680 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:167278 (167.2 KB) TX bytes:167278 (167.2 KB)

wlp2s0 Link encap:Ethernet HWaddr <MAC 'wlp2s0' [IF2]>
inet addr:192.168.0.17 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'wlp2s0' [IF2]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7814 errors:0 dropped:0 overruns:0 frame:0
TX packets:8535 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5088261 (5.0 MB) TX bytes:5361351 (5.3 MB)

##### iwconfig ##########################

lo no wireless extensions.

eth0 no wireless extensions.

wlp2s0 IEEE 802.11abgn ESSID:"KTL"
Mode:Managed Frequency:2.462 GHz Access Point: <MAC 'KTL' [AN2]>
Bit Rate=144.4 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thrff
Power Managementff
Link Quality=70/70 Signal level=-39 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:31 Missed beacon:0

##### route #############################

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 600 0 0 wlp2s0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlp2s0
192.168.0.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp2s0

##### resolv.conf #######################

nameserver 127.0.1.1

##### network managers ##################

Installed:

NetworkManager

Running:

root 974 1 0 12:31 ? 00:00:04 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

GENERAL.DEVICE: wlp2s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8812AE 802.11ac PCIe Wireless Network Adapter
GENERAL.DRIVER: rtl8821ae
GENERAL.DRIVER-VERSION: 4.4.0-67-generic
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC 'wlp2s0' [IF2]>
GENERAL.MTU: 0
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:06.0/0000:02:00.0/net/wlp2s0
GENERAL.IP-IFACE: wlp2s0
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: KTL
GENERAL.CON-UUID: fa85d068-8d7c-414c-b149-f88e39638150
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/4
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 144 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: yes
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: fa85d068-8d7c-414c-b149-f88e39638150 | KTL
IP4.ADDRESS[1]: 192.168.0.17/24
IP4.GATEWAY: 192.168.0.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 24.226.10.193
IP4.DNS[2]: 24.226.10.194
IP4.DNS[3]: 24.226.1.94
DHCP4.OPTION[1]: requested_routers = 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]: host_name = AmigaBuntu
DHCP4.OPTION[8]: requested_wpad = 1
DHCP4.OPTION[9]: requested_netbios_scope = 1
DHCP4.OPTION[10]: next_server = 192.168.0.1
DHCP4.OPTION[11]: expiry = 1490550345
DHCP4.OPTION[12]: requested_interface_mtu = 1
DHCP4.OPTION[13]: requested_subnet_mask = 1
DHCP4.OPTION[14]: dhcp_lease_time = 3600
DHCP4.OPTION[15]: dhcp_message_type = 5
DHCP4.OPTION[16]: ip_address = 192.168.0.17
DHCP4.OPTION[17]: requested_static_routes = 1
DHCP4.OPTION[18]: requested_domain_name_servers = 1
DHCP4.OPTION[19]: routers = 192.168.0.1
DHCP4.OPTION[20]: broadcast_address = 192.168.0.255
DHCP4.OPTION[21]: requested_ntp_servers = 1
DHCP4.OPTION[22]: requested_netbios_name_servers = 1
DHCP4.OPTION[23]: domain_name_servers = 24.226.10.193 24.226.10.194 24.226.1.94
DHCP4.OPTION[24]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[25]: subnet_mask = 255.255.255.0
DHCP4.OPTION[26]: network_number = 192.168.0.0
DHCP4.OPTION[27]: requested_host_name = 1
DHCP4.OPTION[28]: dhcp_server_identifier = 192.168.0.1
IP6.ADDRESS[1]: fe80::<IP6 'wlp2s0' [IF2]>/64
IP6.GATEWAY:

GENERAL.DEVICE: eth0
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: <MAC 'eth0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:0a.0/0000:03:00.0/net/eth0
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: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:

SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
KTL5G <MAC 'KTL5G' [AN1]> Infra 153 5765 MHz 54 Mbit/s 100 ▂▄▆█ WPA2 no
KTL <MAC 'KTL' [AN2]> Infra 11 2462 MHz 54 Mbit/s 76 ▂▄▆_ WPA2 yes *
dlink-C21E-5GHz <MAC 'dlink-C21E-5GHz' [AN3]> Infra 36 5180 MHz 54 Mbit/s 62 ▂▄▆_ WPA1 WPA2 no
NETGEAR55-5G <MAC 'NETGEAR55-5G' [AN4]> Infra 36 5180 MHz 54 Mbit/s 62 ▂▄▆_ WPA2 no
The Net <MAC 'The Net' [AN5]> Infra 149 5745 MHz 54 Mbit/s 60 ▂▄▆_ WPA1 WPA2 no
dlink-6D32 <MAC 'dlink-6D32' [AN6]> Infra 1 2412 MHz 54 Mbit/s 57 ▂▄▆_ WPA1 WPA2 no
dlink-C21E <MAC 'dlink-C21E' [AN7]> Infra 1 2412 MHz 54 Mbit/s 57 ▂▄▆_ WPA1 WPA2 no
new-arris <MAC 'new-arris' [AN8]> Infra 1 2412 MHz 54 Mbit/s 54 ▂▄__ WPA1 WPA2 no
BELL830 <MAC 'BELL830' [AN9]> Infra 9 2452 MHz 54 Mbit/s 54 ▂▄__ WEP no
AttackIP <MAC 'AttackIP' [AN10]> Infra 1 2412 MHz 54 Mbit/s 50 ▂▄__ WPA1 WPA2 no
BELL639 <MAC 'BELL639' [AN11]> Infra 6 2437 MHz 54 Mbit/s 50 ▂▄__ WPA2 no
NETGEAR55 <MAC 'NETGEAR55' [AN12]> Infra 6 2437 MHz 54 Mbit/s 47 ▂▄__ WPA2 no
C2E31666FCDB <MAC 'C2E31666FCDB' [AN13]> Infra 11 2462 MHz 54 Mbit/s 47 ▂▄__ WPA2 no
HP-Print-65-Deskjet 3510 series <MAC 'HP-Print-65-Deskjet 3510 series' [AN14]> Infra 1 2412 MHz 54 Mbit/s 44 ▂▄__ WPA2 no
TP-LINK_3032 <MAC 'TP-LINK_3032' [AN15]> Infra 10 2457 MHz 54 Mbit/s 44 ▂▄__ WPA2 no
LAURIE-PC_Network <MAC 'LAURIE-PC_Network' [AN16]> Infra 11 2462 MHz 54 Mbit/s 44 ▂▄__ WPA1 WPA2 no
SETUP <MAC 'SETUP' [AN17]> Ad-Hoc 11 2462 MHz 11 Mbit/s 44 ▂▄__ -- no
Williams 58 <MAC 'Williams 58' [AN18]> Infra 11 2462 MHz 54 Mbit/s 40 ▂▄__ WPA2 no
dlink-E8D5 <MAC 'dlink-E8D5' [AN19]> Infra 2 2417 MHz 54 Mbit/s 37 ▂▄__ WPA1 WPA2 no
BIG SEXY <MAC 'BIG SEXY' [AN20]> Infra 4 2427 MHz 54 Mbit/s 37 ▂▄__ WPA1 no
C2720A50FB49 <MAC 'C2720A50FB49' [AN21]> Infra 6 2437 MHz 54 Mbit/s 37 ▂▄__ WPA2 no
Canfone493 <MAC 'Canfone493' [AN22]> Infra 11 2462 MHz 54 Mbit/s 37 ▂▄__ WPA1 WPA2 no
C830A7F8E62C <MAC 'C830A7F8E62C' [AN23]> Infra 11 2462 MHz 54 Mbit/s 37 ▂▄__ WPA2 no
Gooding <MAC 'Gooding' [AN24]> Infra 11 2462 MHz 54 Mbit/s 37 ▂▄__ WPA2 no
Joebe <MAC 'Joebe' [AN25]> Infra 11 2462 MHz 54 Mbit/s 34 ▂▄__ WPA2 no
Jeanny PC Network <MAC 'Jeanny PC Network' [AN26]> Infra 11 2462 MHz 54 Mbit/s 34 ▂▄__ WPA1 WPA2 no
BELL330 <MAC 'BELL330' [AN27]> Infra 11 2462 MHz 54 Mbit/s 34 ▂▄__ WPA1 WPA2 no
smokey <MAC 'smokey' [AN28]> Infra 11 2462 MHz 54 Mbit/s 34 ▂▄__ WPA2 no
Linksys00844 <MAC 'Linksys00844' [AN29]> Infra 11 2462 MHz 54 Mbit/s 34 ▂▄__ WPA2 no
Carole Wifi <MAC 'Carole Wifi' [AN30]> Infra 1 2412 MHz 54 Mbit/s 30 ▂___ WPA1 WPA2 no
Lorene <MAC 'Lorene' [AN31]> Infra 11 2462 MHz 54 Mbit/s 30 ▂___ WPA2 no
ss <MAC 'ss' [AN32]> Infra 1 2412 MHz 54 Mbit/s 27 ▂___ WPA1 WPA2 no
LYNN-HP_Network <MAC 'LYNN-HP_Network' [AN33]> Infra 11 2462 MHz 54 Mbit/s 27 ▂___ WPA2 no
The Place to be <MAC 'The Place to be' [AN34]> Infra 11 2462 MHz 54 Mbit/s 27 ▂___ WPA2 no

##### NetworkManager.state ##############

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

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/KTL]] (600 root)
[connection] id=KTL | type=wifi | permissions=user:tweak:;
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=KTL
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: America/Toronto (based on set time zone)

country CA: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 17), (N/A)
(5250 - 5330 @ 80), (N/A, 24), (0 ms), DFS
(5490 - 5600 @ 80), (N/A, 24), (0 ms), DFS
(5650 - 5730 @ 80), (N/A, 24), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)

##### iwlist channels ###################

lo no frequency information.

eth0 no frequency information.

wlp2s0 32 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 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
Channel 149 : 5.745 GHz
Channel 153 : 5.765 GHz
Channel 157 : 5.785 GHz
Channel 161 : 5.805 GHz
Channel 165 : 5.825 GHz
Current Frequency:2.462 GHz (Channel 11)

##### iwlist scan #######################

lo Interface doesn't support scanning.

wlp2s0 Interface doesn't support scanning : Device or resource busy

eth0 Interface doesn't support scanning.

##### module infos ######################

[rtl8821ae]
filename: /lib/modules/4.4.0-67-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko
firmware: rtlwifi/rtl8821aefw.bin
description: Realtek 8821ae 802.11ac PCI wireless
license: GPL
author: Realtek WlanFAE <wlanfae@realtek.com>
srcversion: B9E24DCC76240A48AEEF94E
depends: rtlwifi,rtl_pci,btcoexist,mac80211
intree: Y
vermagic: 4.4.0-67-generic SMP mod_unload modversions
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: msi:Set to 1 to use MSI interrupts mode (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
parm: disable_watchdog:Set to 1 to disable the watchdog (default 0)
(bool)
parm: int_clear:Set to 0 to disable interrupt clear before set (default 1)
(bool)

[rtl_pci]
filename: /lib/modules/4.4.0-67-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl_pci.ko
description: PCI basic driver for rtlwifi
license: GPL
author: Larry Finger <Larry.FInger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: A8D4C0A6A0654A520F36829
depends: mac80211,rtlwifi
intree: Y
vermagic: 4.4.0-67-generic SMP mod_unload modversions

[rtlwifi]
filename: /lib/modules/4.4.0-67-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <Larry.FInger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: 8DE5162D95CD0C7CC18C5A8
depends: mac80211,cfg80211
intree: Y
vermagic: 4.4.0-67-generic SMP mod_unload modversions

[mac80211]
filename: /lib/modules/4.4.0-67-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 95AEC776A5F508489477F0E
depends: cfg80211
intree: Y
vermagic: 4.4.0-67-generic SMP mod_unload modversions
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_algoefault rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename: /lib/modules/4.4.0-67-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: A7DC879B6551813C20004F1
depends:
intree: Y
vermagic: 4.4.0-67-generic SMP mod_unload modversions
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_24ghzisable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[rtl8821ae]
debug: 0
disable_watchdog: N
fwlps: Y
int_clear: Y
ips: Y
msi: Y
swenc: N
swlps: N

[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

[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 i2c_i801
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/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/iwlwifi-opt.conf]
options iwlwifi 11n_disable=1

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

[/etc/modprobe.d/osspd.conf]
blacklist snd-pcm-oss
blacklist snd-mixer-oss
blacklist snd-seq-oss

##### rc.local ##########################

exit 0

##### pm-utils ##########################

[/etc/pm/config.d/config] (644 root)
SUSPEND_MODULES="rtl8821ae wlp2s0"

grep: /etc/pm/config.d/.config.swp: Permission denied

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

##### dmesg #############################

[ 597.947749] wlp2s0: deauthenticating from <MAC 'KTL' [AN2]> by local choice (Reason: 3=DEAUTH_LEAVING)
[ 625.111841] wlp2s0: authenticate with <MAC 'KTL' [AN2]>
[ 629.907323] wlp2s0: send auth to <MAC 'KTL' [AN2]> (try 1/3)
[ 629.909237] wlp2s0: authenticated
[ 629.922577] wlp2s0: associate with <MAC 'KTL' [AN2]> (try 1/3)
[ 629.926422] wlp2s0: RX AssocResp from <MAC 'KTL' [AN2]> (capab=0x431 status=0 aid=3)
[ 629.932877] wlp2s0: associated
[ 729.234410] wlp2s0: deauthenticating from <MAC 'KTL' [AN2]> by local choice (Reason: 3=DEAUTH_LEAVING)
[ 760.994176] wlp2s0: authenticate with <MAC 'KTL' [AN2]>
[ 760.997202] wlp2s0: send auth to <MAC 'KTL' [AN2]> (try 1/3)
[ 761.002470] wlp2s0: authenticated
[ 761.006152] wlp2s0: associate with <MAC 'KTL' [AN2]> (try 1/3)
[ 761.021700] wlp2s0: RX AssocResp from <MAC 'KTL' [AN2]> (capab=0x431 status=0 aid=3)
[ 761.028516] wlp2s0: associated
[ 871.811077] wlp2s0: deauthenticating from <MAC 'KTL' [AN2]> by local choice (Reason: 3=DEAUTH_LEAVING)
[ 891.531680] wlp2s0: authenticate with <MAC 'KTL' [AN2]>
[ 891.532274] wlp2s0: send auth to <MAC 'KTL' [AN2]> (try 1/3)
[ 891.537700] wlp2s0: authenticated
[ 891.538399] wlp2s0: associate with <MAC 'KTL' [AN2]> (try 1/3)
[ 891.544657] wlp2s0: RX AssocResp from <MAC 'KTL' [AN2]> (capab=0x431 status=0 aid=3)
[ 891.551257] wlp2s0: associated

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

[oshunluvr]

Try this ins a terminal and rebooting:

sudo iw reg set IN
sudo sed -i 's/^REG.*=$/&IN/' /etc/default/crda

[Oderus]

You can also try downloading the deb package from the following link if all else fails:

https://packages.debian.org/sid/all/...altek/download

See the following page for more info:

https://packages.debian.org/sid/firmware-realtek

tried installing this and thank you for the comment. Unfortunately no luck!

[Oderus]

Try this ins a terminal and rebooting:

sudo iw reg set IN
sudo sed -i 's/^REG.*=$/&IN/' /etc/default/crda

No luck Same thing. It seems like if i wait long enough it comes back but then goes out again within a minute or 2.

[Oderus]

i've actually been stable for a while now... I feel silly but it was dropbox uploading causing this to happen even though it was no more than 80kb/s uploading for some reason it was causing the networking to fail. I tried scaling it back to 20kb/s and its been totally stable. Still can't connect to a 5g network, but at least it's not constant crashing. Should I report this to dropbox or does this seem normal?

[dequire]

It's worth nothing that many times you can get a USB wireless nic on the cheap, many times for $20US or under. Many are shown to have excellent Linux support. You may want to look at this as an option going forward to avoid future headaches, as there are still some wireless chipsets out there that can cause problems.

Ubuntu keeps a user-generated web page regarding performance of different wireless chipsets :https://help.ubuntu.com/community/Wi...CardsSupported

Also, ThinkPenguin stocks networking hardware using only open source drivers. If you went that route, you'd be pretty set w/o worry regarding WiFi. Although not bleeding edge tech (It looks as though standards up through and including Wireless 'N' are supported), should be plenty fast for near any real-world application. Their wireless items can be found here: https://www.thinkpenguin.com/catalog...rking-gnulinux

Edit: added thinkpenguin info.

[Oderus]

It's worth nothing that many times you can get a USB wireless nic on the cheap, many times for $20US or under. Many are shown to have excellent Linux support. You may want to look at this as an option going forward to avoid future headaches, as there are still some wireless chipsets out there that can cause problems.

Ubuntu keeps a user-generated web page regarding performance of different wireless chipsets :https://help.ubuntu.com/community/Wi...CardsSupported

Also, ThinkPenguin stocks networking hardware using only open source drivers. If you went that route, you'd be pretty set w/o worry regarding WiFi. Although not bleeding edge tech (It looks as though standards up through and including Wireless 'N' are supported), should be plenty fast for near any real-world application. Their wireless items can be found here: https://www.thinkpenguin.com/catalog...rking-gnulinux

Edit: added thinkpenguin info.

Actually I was tempted to purchase a USB Wifi attachment but I figured that it would be faster through PCI so I ended up just buying a PCI card :/. I will look into this though, thank you.

[GreyGeek]

ilename: /lib/modules/4.4.0-67-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko
firmware: rtlwifi/rtl8821aefw.bin
description: Realtek 8821ae 802.11ac PCI wireless
license: GPL
author: Realtek WlanFAE <wlanfae@realtek.com>
srcversion: B9E24DCC76240A48AEEF94E
depends: rtlwifi,rtl_pci,btcoexist,mac80211
intree: Y
vermagic: 4.4.0-67-generic SMP mod_unload modversions
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: msi:Set to 1 to use MSI interrupts mode (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
parm: disable_watchdog:Set to 1 to disable the watchdog (default 0)
(bool)
parm: int_clear:Set to 0 to disable interrupt clear before set (default 1)
(bool)

Use the "options" in the conf to set the params highlighted in red to 0 (zero).
Then use systemd to restart the network service. (Or log out and back in)