Once again, using a OS (and I tried 18.3, since I already had that one downloaded) that does not even show detection of any of 3 USB adapters means there is no Internet connection to upgrade the kernel unless I borrow one that works, but there is no assurance that is going to solve the issue, while Kubuntu shows the most promise, and I like its device manager and degree of options better.
Well unless you call someone and have them send you a portable medium with the driver on it you need the net because it is the only easy and logical source. Do it on another machine and transfer it. I will look for the proper folder for you. Which version do you want this path for?