Network device missing after installation

[Jeffrey Seguerra]

I installed Ubuntu 20.04 for Live Session was able to connect to Wfi. After installation, Network Device is missing and can't connect to Wifi.My Network controller is MEDIATEK Corp. MT7630e 802.11bgn Wireless Network Adapter.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed May 6 12:04:35 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
InstallationDate: Installed on 2020-05-06 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
 LANGUAGE=en_PH:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_PH.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
Symptom: installation
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your log files attached to this bug report it seems that there is a problem with your installation media (CD/DVD). You can verify the integrity of the Ubuntu ISO files you downloaded by following the instructions at https://help.ubuntu.com/community/HowToMD5SUM. You might also retry your installation with new media. In the event that is is not in fact an error with your installation media please set the bug's status back to New. Thanks and good luck!

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Stephen Phillips (stephen-kent-phillips)]

We have that same issue on a 5 year old Asus laptop. We have been getting it to work with the driver from https://github.com/neurobin/MT7630E.git

For some reason, I can't get it to compile on Ubuntu 20.04 / Kernel 5.4.0-29

The strangest thing is that it worked on the Live CD with no tweaks or anything. Then, when I rebooted after installing, it wouldn't work. I don't know how to figure out what is different on the live CD versus the installed OS.

[hakapeszi (hakapeszi-maki)]

I have the same problem on an Asus X550c with an MT630e, kernel 5.4.0-33.
Apparently it doesn't work after a restart. With a shutdown-poweron it works every time.

[Launchpad Janitor (janitor)]

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]