- Distro: - Ubuntu 20.04.4 LTS (fresh install today from scratch)
- Device: - Unknown manufacturer but has the label "AC1200". It is a dual-band 2.4/5GHz type.
I'm trying to install my WiFi device under Ubuntu but the system doesn't appear to recognise it by default. The device has a RealTek chipset according to lsusb:
Bus 003 Device 008: ID 0bda:b812 Realtek Semiconductor Corp. 802.11ac NIC
When I boot into Ubuntu with this device installed in a USB3 socket, Ubuntu's "WiFi settings" dialog cannot see this device.
I've had this device for about 2 years and have been using it with great success under Windows 10 since then, the bandwidth is excellent (200+ MBit/sec and very stable).
Another WiFi device I have can be recognised and works, but the bandwidth and signal strength is very poor so I'd like to get this unit working instead, because I know it is far superior.
It would be wonderful to get this device working under Ubuntu, but I have not been able to identify the problem. I'm not very experienced with WiFi configuration under Linux, but I have taken the following steps so far:
- Updated and upgraded the distro to today's latest releases.
- Tried (and failed) to find an appropriate driver for it.
Can you help me to bring this device online and restore my WiFi connection?
lsusb, find the line identifying your USB device and then [edit] the querstion with that information. RTL8211E is NOT the USB device. – ChanganAuto Mar 02 '22 at 20:00