Mint 19.01 keeps dropping wifi

[saiprem]

Hello helpers and boy do I need help. This has been bugging me for a long time.
My laptop wifi card wore out some time back so now I use a USB wifi dongle (Realtek 802.11ac NIC). I has the correct driver.
When is working as good as it gets my network manager is showing all available wifi networks in addition to the one I am connected to. But at totally random times it stops showing all the networks it is not connected to and the speed of the network it is connected to drops about 75%.
I have searched the forum and other additional resources to find a solution but nothing. I have disabled network power saver, blacklisted Sunrise point, disabled IPv6 and nothing works. This is what I'm talking about:


Can anybody tell me what to do?

[sleeper12]

Can't see that image, but post results of:

Code: Select all

 inxi -Fxxxz && rfkill list && iwconfig && mokutil --sb-state 

[saiprem]

Thank you.

System:
Host: prem-HP-Notebook Kernel: 4.15.0-140-generic x86_64 bits: 64
compiler: gcc v: 7.5.0 Desktop: Cinnamon 4.0.10 wm: muffin 4.0.7
dm: LightDM 1.26.0 Distro: Linux Mint 19.1 Tessa base: Ubuntu 18.04 bionic
Machine:
Type: Laptop System: HP product: HP Notebook v: Type1ProductConfigId
serial: <filter> Chassis: type: 10 serial: <filter>
Mobo: HP model: 81ED v: 62.36 serial: <filter> UEFI: Insyde v: F.21
date: 10/27/2016
Battery:
ID-1: BAT1 charge: 25.1 Wh condition: 25.1/41.6 Wh (60%) volts: 16.7/14.6
model: Hewlett-Packard PABAS0241231 type: Li-ion serial: <filter>
status: Full
CPU:
Topology: Dual Core model: Intel Core i7-7500U bits: 64 type: MT MCP
arch: Kaby Lake rev: 9 L2 cache: 4096 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 23199
Speed: 622 MHz min/max: 400/3500 MHz Core speeds (MHz): 1: 700 2: 700
3: 700 4: 700
Graphics:
Device-1: Intel HD Graphics 620 vendor: Hewlett-Packard driver: i915
v: kernel bus ID: 00:02.0 chip ID: 8086:5916
Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa
resolution: 1366x768~60Hz
OpenGL: renderer: Mesa DRI Intel HD Graphics 620 (KBL GT2)
v: 4.6 Mesa 20.0.8 compat-v: 3.0 direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Hewlett-Packard
driver: snd_hda_intel v: kernel bus ID: 00:1f.3 chip ID: 8086:9d71
Sound Server: ALSA v: k4.15.0-140-generic
Network:
Device-1: Realtek RTL810xE PCI Express Fast Ethernet
vendor: Hewlett-Packard driver: r8169 v: 2.3LK-NAPI port: 3000
bus ID: 01:00.0 chip ID: 10ec:8136
IF: enp1s0 state: down mac: <filter>
Device-2: Intel Dual Band Wireless-AC 3168NGW [Stone Peak] driver: iwlwifi
v: kernel port: 3000 bus ID: 02:00.0 chip ID: 8086:24fb
IF: wlp2s0 state: down mac: <filter>
Device-3: Realtek type: USB driver: rtl88x2bu bus ID: 1-1:2
chip ID: 0bda:b812 serial: <filter>
IF: wlx200db0408924 state: up mac: <filter>
Drives:
Local Storage: total: 931.51 GiB used: 700.64 GiB (75.2%)
ID-1: /dev/sda vendor: Toshiba model: MQ01ABD100 size: 931.51 GiB
speed: 6.0 Gb/s rotation: 5400 rpm serial: <filter> rev: 4C scheme: GPT
Partition:
ID-1: / size: 762.56 GiB used: 700.54 GiB (91.9%) fs: ext4 dev: /dev/sda6
ID-2: swap-1 size: 15.92 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda7
Sensors:
System Temperatures: cpu: 40.0 C mobo: 29.8 C
Fan Speeds (RPM): N/A
Info:
Processes: 286 Uptime: 3h 22m Memory: 15.58 GiB used: 5.18 GiB (33.2%)
Init: systemd v: 237 runlevel: 5 Compilers: gcc: 7.5.0 alt: 7 Shell: bash
v: 4.4.20 running in: gnome-terminal inxi: 3.0.27
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy1: Wireless LAN
Soft blocked: no
Hard blocked: no
wlp2s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off

lo no wireless extensions.

enp1s0 no wireless extensions.

wlx200db0408924 IEEE 802.11bgn ESSID:"MySpectrumWiFiba-2G" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:2.412 GHz Access Point: 84:A1:D1:B6:93:C0
Bit Rate:144.4 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=89/100 Signal level=15/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

SecureBoot disabled
Platform is in Setup Mode

[saiprem]

Here's another try at the images I'm talking about"

[sleeper12]

Can you remove the internal wifi card? Just a guess, but maybe it's interfering.

[saiprem]

Funny about that, when I first blacklisted the internal wifi card and restarted the computer it didn't show anymore. Then it showed up again even though it's still blacklisted. I haven't opened up the computer because I didn't want to void the warranty, but it might work if I try that.

Any other suggestions?

[sleeper12]

Well, I don't want you to void your warranty, so maybe someone else will have an idea.

[sleeper12]

Are you dual booting with Windows?

[saiprem]

Rarely, but dual booting is possible. I could see if there is a similar problem in Windows. Then I would know if it is a hardware problem.

[sleeper12]

You might need to disable fast boot or fast startup.

[saiprem]

I disconnected the computer wifi card and the problem is still there.