Similar issues have been resolved by uninstalling Realtek audio driver from Device Manager and reboot the machine.  Give the system a few minutes for driver to reinstall itself.  After you see notification from tray area that Wave Maxx was installed, reconnecting speakers, you should get the pop up selection screen. For whatever reason that the driver did not get reinstalled, you can download this Realtek audio driver and install it manually.  Waves Maxx should reinstall automatically as part of Realtek audio driver installation.
Hello, I have multiple Optiplex 3070 desktops that are failing to detect speakers connected to the aux ports. The speakers were working fine on a particular machine until the user unplugged them to use elsewhere. When she plugged them back in, the speakers were no longer detected. I've checked Windows and Dell updates, as well as uninstalling and reinstalling the Realtek audio drivers. Any suggestions would be greatly appreciated. Thank you
Auxiliary Ports not working - Speakers undetected