Wifi adapter not found in Ubuntu [duplicate]
I have moved house and in my new house my desk, with the computer, is isolated and cannot get the cable fron the router though there is not a big distance, probably 10 meters.
So I dusted off an old dongle I bought for my laptop some time ago, I connected to a free usb 2.0 and everything went smooth I was connected to my wifi in no time, but the max I could get was 5.7 mbps Download and 7.7 upload, this with a 100 mb connection.
I tried a series of ways to get that improved with no success, so finally I decided to buy something to get this improved, first I bought a repeater, but the improve, if any, was neglectable,finally checking in different places I decided to buy a new dongle in Amazon. A wifi adaptor ac1200 with Realtek 8812Au.
It wasn't easy to make it work, my knowledge of Ubuntu is not up to a pro, but finally, following the explanations from a web site (the disk that accompanied the adapter was ALL in chinese!!):
sudo apt-get update
sudo apt-get install linux-headers-generic build-essential git
git clone https://github.com/abperiasamy/rtl8812AU_8821AU_linux.git
cd rtl8812AU_8821AU_linux
make
sudo make install
sudo modprobe rtl8812au
It started working right away giving me almost 100 mb, so I was super happy.
After 3 weeks, the adapter didn't start. I have to say the adapter must be connected to a usb 3 and as soon as it is connected there is alight that comes on, well this time not even the light was coming on.
I tried different things:
- Change the cable to another usb 3 socket, NO SUCCESS
- Change the usb 3 cable, NO SUCCESS
- Connect a external drive to the same socket with the same cable,the hdd was working
- Re-start the computer and try everything again, the same results as before.
So finally I thought that the adapter just had died, as I was still in 30 days Amazon gives you to return the goods, I returned it and, after thinking for a couple of days, I decided to buy it again.
It arrived yesterday, this time the software in the disk was in English, but I thought it would work because the driver was installed, so I plugged it in and ....Oh, surprise!! the light didn't come on, so it doesn't work. I have been reading about this driver and installation in ubuntu this last 48 hours, but most of the places explain what I already did and, to be honest, many of then explain things I don't understand and I am afraid that if it doesn't work I will not be able to undo what I did.
Probably I should delete the driver and do everything again, but I don't know how to do it, or even if that will work.
Any help will be welcome and please, think that I am not a pro with Ubuntu, so make it easy to understand.
Right know I came back to my old dongle with 5.7 mbps right now and if I do a "lsusb" this is what I get:
juan@juan-desktop:~/rtl8812AU_8821AU_linux$ lsusb
Bus 001 Device 005: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter
Bus 001 Device 002: ID 145f:013f Trust Megapixel Auto Focus Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 062a:0102 Creative Labs Wireless Keyboard/Mouse Combo [MK1152WC]
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 004: ID 0bda:b812 Realtek Semiconductor Corp.
Bus 006 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
I am running Ubuntu 16.04 with kernel:
juan@juan-desktop:~/rtl8812AU_8821AU_linux$ uname -r
4.13.0-37-generic
The file in the small cd with the adapter has a zip file called:
RTL88x2BU_WiFi_linux_v5.2.4.1_22719_COEX20170518-4444.20170613.20170427_TV_ANDROID_6.x_COEX_8822BS-C4242_8822BU-C4242(r1)
Thank you in advance for your help.
Solution 1:
Randy Ciwyll’s repository has the solution that worked for my system (Linux Mint 18.3 Kernel 4.10). As chili555 guessed, my device is the rtl8822bu. And yes, I have found that I need to reinstall the driver every time I get an applicable update.
sudo apt update
sudo apt install dkms bc git
git clone https://github.com/cilynx/rtl88x2BU_WiFi_linux_v5.3.1_27678.20180430_COEX20180427-5959
sudo dkms add ./rtl88x2BU_WiFi_linux_v5.3.1_27678.20180430_COEX20180427-5959
sudo dkms install -m rtl88x2bu -v 5.3.1
sudo modprobe 88x2bu
Solution 2:
RTL88x2BU-Linux-Driver
Current Driver Version: 5.8.7.2 Support Kernel: 2.6.24 ~ 5.8 (with unofficial patches) in this case xanmod 5.8.11
-
Clone or Download: https://github.com/RinCat/RTL88x2BU-Linux-Driver.git
-
Navigate to the downloaded Directory (RTL88x2BU-Linux-Driver) & open in terminal
-
Compile (build), install & run: with the directory open in terminal, type:
make(to compile the installer)sudo make install(to install it)sudo modprobe 88x2bu(to start the driver)
Supported Devices
ASUS AC1300 USB-AC55 B1
ASUS U2
Dlink - DWA-181
Dlink - DWA-182
Edimax EW-7822ULC
Edimax EW-7822UTC
NetGear A6150
TP-Link Archer T3U
TP-Link Archer T3U Plus
TP-Link Archer T4U V3
TRENDnet TEW-808UBM
Techkey AC 1200Mbps dual Antenna
And more.
more answers on the .git page.
Solution 3:
First, install the dependencies:
sudo apt update
sudo apt dist-upgrade
sudo apt-get install linux-headers-generic build-essential dkms git
Next, git clone and install the driver:
sudo git clone "https://github.com/RinCat/RTL88x2BU-Linux-Driver.git" /usr/src/rtl88x2bu-git
sudo sed -i 's/PACKAGE_VERSION="@PKGVER@"/PACKAGE_VERSION="git"/g' /usr/src/rtl88x2bu-git/dkms.conf
sudo dkms add -m rtl88x2bu -v git
sudo dkms autoinstall
Save any unsaved work and then reboot.
After you log back in, run the following command if it shows "no wifi adapter found".
sudo modprobe 88x2bu