WiFi unstable/unable to connect to router, but can connect to phone tether

[axe-boy]

Hi, i have search the forum, though have not been able to find a solution. my wifi use to connect just fine, over the last week or so, it has repeatedly asked me for the router password. on the odd occasion when it will connect, it is so slow and then will fail and disconnect. if i attempt to connect to my phone hotspot (as i am right now), i dont have a problem. im relatively new to linux, but can muddle my way through.

also to note, i recently got a replacement router (vx220-G2v), everything else connects to it fine.

inxi -fxxz shows the following:

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CPU:
  Topology: Dual Core model: Intel Atom D525 bits: 64 type: MT MCP 
  arch: Bonnell rev: A L1 cache: 48 KiB L2 cache: 512 KiB bogomips: 14364 
  Speed: 1796 MHz min/max: N/A Core speeds (MHz): 1: 1796 2: 1795 3: 1795 
  4: 1795 
  Flags: acpi aperfmperf apic arch_perfmon bts clflush cmov constant_tsc 
  cpuid cx16 cx8 de ds_cpl dtes64 dtherm dts fpu fxsr ht lahf_lm lm mca mce 
  mmx monitor movbe msr mtrr nx pae pat pbe pdcm pebs pge pni pse pse36 sep 
  ss sse sse2 ssse3 tm tm2 tsc vme xtpr

inxi --full shows the following:

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System:
  Host: HTPC Kernel: 5.4.0-148-generic i686 bits: 32 Desktop: Cinnamon 4.4.8 
  Distro: Linux Mint 19.3 Tricia 
Machine:
  Type: Desktop Mobo: ASRock model: ION3D-HT serial: N/A 
  BIOS: American Megatrends v: P1.40 date: 08/30/2011 
CPU:
  Topology: Dual Core model: Intel Atom D525 bits: 64 type: MT MCP 
  L2 cache: 512 KiB 
  Speed: 1796 MHz min/max: N/A Core speeds (MHz): 1: 1796 2: 1795 3: 1796 
  4: 1796 
Graphics:
  Device-1: NVIDIA GT218 [ION] driver: nvidia v: 340.108 
  Display: server: X.Org 1.20.8 driver: nvidia 
  unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~60Hz 
  OpenGL: renderer: ION/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108 
Audio:
  Device-1: Intel 82801H HD Audio driver: snd_hda_intel 
  Device-2: NVIDIA High Definition Audio driver: snd_hda_intel 
  Sound Server: ALSA v: k5.4.0-148-generic 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  driver: r8169 
  IF: enp3s0 state: down mac: bc:5f:f4:55:10:b7 
  Device-2: Realtek RTL8191SU 802.11n WLAN Adapter type: USB driver: r8712u 
  IF: wlxe0915339482d state: up mac: e0:91:53:39:48:2d 

im wondering if its a router setting? or a password encryption protocol for the router?

thanks in advance.

[sleeper12]

Support for Mint 19.3 will end in about a week, but what does this show:

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iwconfig

[axe-boy]

Thanks for the reply

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lo        no wireless extensions.

wlxe0915339482d  IEEE 802.11bgn  ESSID:"Ball"  Nickname:"rtl_wifi"
          Mode:Managed  Frequency:2.452 GHz  Access Point: 28:87:BA:5E:BC:13   
          Bit Rate:150 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=61/100  Signal level=58/100  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

enp3s0    no wireless extensions.

[sleeper12]

Not sure if it will help, but you can try reloading the driver:

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 sudo modprobe -r r8712u && sudo modprobe r8712u && sudo systemctl restart network-manager.service