WiFi stopped working - tried everything and all fails

[interzone77]

Hi all!

- I am using Linux Mint 18.3 cinnamon. Wi-fi stopped working (it doesn't find any networks) a month ago and never went on again.

sudo inxi -Fxz

System: Host: andre-X555LJ Kernel: 4.15.0-43-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: Cinnamon 3.6.7 (Gtk 3.18.9-1ubuntu3.3)
Distro: Linux Mint 18.3 Sylvia
Machine: System: ASUSTeK (portable) product: X555LJ v: 1.0
Mobo: ASUSTeK model: X555LJ v: 1.0
Bios: American Megatrends v: X555LJ.602 date: 05/06/2016
CPU: Dual core Intel Core i5-5200U (-HT-MCP-) cache: 3072 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 8786
clock speeds: max: 2700 MHz 1: 1762 MHz 2: 1153 MHz 3: 1321 MHz
4: 1449 MHz
Graphics: Card-1: Intel Broadwell-U Integrated Graphics bus-ID: 00:02.0
Card-2: NVIDIA GK208M [GeForce 920M] bus-ID: 03:00.0
Display Server: X.org 1.18.4 driver: nvidia
tty size: 80x24 Advanced Data: N/A for root
Audio: Card-1 Intel Wildcat Point-LP High Definition Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Card-2 Intel Broadwell-U Audio Controller
driver: snd_hda_intel bus-ID: 00:03.0
Sound: Advanced Linux Sound Architecture v: k4.15.0-43-generic
Network: Card: MEDIATEK MT7630e 802.11bgn Wireless Network Adapter
bus-ID: 02:00.0
IF: N/A state: N/A mac: N/A
Drives: HDD Total Size: 1000.2GB (11.6% used)
ID-1: /dev/sda model: HGST_HTS541010A9 size: 1000.2GB temp: 25C
Partition: ID-1: / size: 911G used: 103G (12%) fs: ext4 dev: /dev/sda2
ID-2: swap-1 size: 6.34GB used: 0.00GB (0%) fs: swap dev: /dev/sda3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 38.0C mobo: N/A gpu: 0.0:35C
Fan Speeds (in rpm): cpu: 2300
Info: Processes: 218 Uptime: 10 min Memory: 1291.7/5863.7MB
Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (sudo) inxi: 2.2.35

- There's no combo of keys or button to turn Wi-Fi On/Off in my laptop. It is on on BIOS.

- I tried all I could find on the forum and all over the web and nothing works.

Thank you!

[ajgringo619]

I found this link from an old Linux Mint Community post (https://community.linuxmint.com/tutorial/view/1796). Since it was 4 years old, I searched to see if there was anything updated since then, and found this: https://neurobin.org/projects/softwares/unix/MT7630E/.

The latest driver is still a couple of years old, but your WiFi adapter is old as well. Do you happen to remember if the adapter failed after a kernel upgrade? If so, you need to make sure that the DKMS module is installed so it will automatically rebuild.

[interzone77]

Thank you AJGringo! It was exactly that.

It's working now...

[ajgringo619]

Great to hear. I would suggest making a Timeshift snapshot of your system now, just in case the next kernel update doesn't go as planned.