I'm sorry to have to report a BIG NEW problem. Everything was working well for several days. Today it was working and on all day....I took a nap and then came back to the computer [not having been turned off] and noticed there was NO internet. I ran some of the diagnostics and some of the 'fixes' and 'repair' methods listed in this thread. Nothing worked. The computer said my wifi device was down. I rebooted and remembered that a new kernel was installed this morning, so I tried two older kernels. Nothing helped. Now all of my hardware-based network devices are UNCLAIMED. Please help! I'm really confused at how it went from just fine to all messed up again. Today, I was doing mostly word-processing while also sometimes doing internet searches and connecting to various sites.....somewhere in the later part of the day, something went terribly wrong. I was NOT using terminal until AFTER I noticed my wifi device was down.
Code:
$ sudo lshw -C network; lsb_release -a; uname -a; sudo iwlist scan | egrep 'chan | sid'
*-network UNCLAIMED
description: Network controller
product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: ioport:ee00(size=256) memory:fbefc000-fbefffff
*-network UNCLAIMED
description: Ethernet controller
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
version: 03
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list
configuration: latency=0
resources: ioport:be00(size=256) memory:fbaff000-fbafffff memory:fbaf8000-fbafbfff memory:fbb00000-fbb1ffff
*-network UNCLAIMED
description: Ethernet controller
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:08:00.0
version: 03
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list
configuration: latency=0
resources: ioport:ae00(size=256) memory:fb8ff000-fb8fffff memory:fb8f8000-fb8fbfff memory:fb900000-fb91ffff
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: virbr0-nic
serial: 52:54:00:2b:2f:a7
size: 10Mbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s
LSB Version: core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
Linux GA-X58A-UD7 4.13.0-45-generic #50~16.04.1-Ubuntu SMP Wed May 30 11:18:27 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
lo Interface doesn't support scanning.
virbr0-nic Interface doesn't support scanning.
virbr0 Interface doesn't support scanning.
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