USB ports on the back of a metal PC tower act as a shield against Wi-Fi signals. Use a short USB extension cable to placement the adapter up on your desk with a clear line of sight to the router.
The "rtl19oct" driver source was written for older kernels (3.x/4.x). Kernel 5.x introduced breaking changes in the net_device and wireless API. wireless usb adapter driver rtl19oct work
This paper serves as a comprehensive guide for IT administrators and advanced users encountering the "rtl19oct" driver identifier. This identifier typically refers to a specific build or release version of Linux drivers for (commonly utilizing the RTL8188EUS, RTL8188GU, or RTL8812AU chipsets). Solving the Mystery: How to Make Your Wireless
You must have a temporary internet connection (Ethernet or a different Wi-Fi dongle) to download the required build tools. Kernel 5