
In each case, networking finds the wifi (a netgears wifi router connected to satelite dish proprietary router) and acceptably strong signal but no network found. Tried all three blacklisting the two others. With rtl8xxxu, it says it needs rtl8xxxu-untested. I got the same mint version and same stock kernel at home installed on a usb ssd but it was a no go. The salesman plugged it into a laptop running mint and it worked fine in the shop. I have the TL-WN822N dongle which works under XP to win10. Thought this was a better place to answer (than here):

Maybe if you identified the device, you would get some help with it. No linux distro has been able to run my tplink usb wifi (windoze only).
