A few days ago I updated my UBUNTU 16.04 version with 18.04.1
But after that, my wifi stopped working on my laptop. I'm using Acer E515 laptop and my wireless card manufacturer is Qualcomm.
I also tried with lots of solution links on stack-overflow, askubuntu, and other youtube videos but nothing is working for me.
Lots of videos and links are saying go to your 'Software Update' and click on 'Additional Drivers' Tab and proceed.
But in my case 'Additional Drivers' tab is showing 'No additional drivers available'.
Yesterday, I was tried with this link: https://ubuntuforums.org/showthread.php?t=2392454
But on the last step, it's giving an error (this package is deleted something like this) related to 'linux-header-kernel' 4.0.3-generic something.
when i run 'uname -r' command then it's showing :- 'linux-header-kernel-4.0.3-generic' something.(I don't know what was actually)
Please help me guys, I can't make a full-day Ethernet or Cable connection to my laptop.
Thanks
