WIFI USB Adapter stopped Working

Lubuntu Support
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1

2 months ago I set up a Fujitsu Futro and connected it to the Internet using the WIFI USB stick. It worked without any problems. I didn’t have to install a driver. Plug & Play.

Yesterday I wanted to set up another Fujitsu Futro. So I bought exactly the same WIFI USB stick again. Yesterday I plugged in the USB stick and nothing happened. No WLAN networks were displayed. I found that strange. Then I tried to install a driver. Now networks were displayed. But I could only connect to my mobile hotspot. I couldn’t connect to my network router. In addition, the passwords are not saved and are gone after a restart.

What has changed in the meantime, assuming that the WIFI adapter is the same chip? Can I perhaps install an earlier Lubuntu version so that the stick works? Or are there other settings that affect this?

The stick shows up as Realtek rtl8812au/rtl8821au. But it only works with the rtl8821au driver.

Thank you very much for your help!

2

So, to be clear you have 2 dongles and 2 Futros? One dongle worked 2 months ago (older) and the new(er) one does not work?

Question(s):

  • Does the older dongle still work (on the older Futro)?
  • Have you tried plugging the older dongle into the newer Futro?
  • Or, the newer dongle into the older Futro?
3

Hi berndver! :wave:

In addition to what eeyore has requested, could you open a terminal and post the results of the command below, just the one that concerns your adapter? Thanks! :slightly_smiling_face:

At this point, if I had to guess, it sounds like the second adapter you bought has a different chip than the first. Perhaps you could include the results from the first adapter, as well, so we have more information to work with. :computer:

lsusb

Regards…

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