I am having an issue with a USB RTL8812AU dongle. The laptop has built in wireless and I am trying to install the usb dongle. The system sees it as "Bus 001 Device 002: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter" but it wont list it in the network manager or see it when I do an ifconfig. Anyone have a suggestion on where to get some information on troubleshooting?