Hi i know there's a ton of this kind of threads but i've been searching for a solution for 2 days and i can't find one. I installed Ubuntu 20.04.3 LTS on my Lenovo G460, it's the only OS that it has but previously i used windows 10. Like the title says when i booted with usb to install Ubuntu the wired connection stopped working, now whenever i try to connect it shows a msg that says "Activation of network connection failed". Here's some info that may help:
Code:
##### release ###########################  Distributor ID:    Ubuntu Description:    Ubuntu 20.04.3 LTS Release:    20.04 Codename:    focal  ##### kernel ############################  Linux 5.11.0-37-generic #41~20.04.2-Ubuntu SMP Fri Sep 24 09:06:38 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux  Parameters: ro, quiet, splash, vt.handoff=7  ##### desktop ###########################  Ubuntu  ##### lspci #############################  06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 02)     Subsystem: Lenovo RTL810xE PCI Express Fast Ethernet controller [17aa:392e]     Kernel driver in use: r8169  ##### lsusb #############################  Bus 002 Device 077: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled) Bus 002 Device 003: ID 04f2:b1c1 Chicony Electronics Co., Ltd  Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  ##### PCMCIA card info ##################  ##### rfkill ############################  0: ideapad_wlan: Wireless LAN     Soft blocked: no     Hard blocked: no 1: ideapad_bluetooth: Bluetooth     Soft blocked: yes     Hard blocked: no  ##### secure boot #######################  'mokutil' is not installed (package "mokutil").  ##### lsmod #############################  ideapad_laptop         20480  0 sparse_keymap          16384  1 ideapad_laptop wmi_bmof               16384  0 wmi                    32768  2 wmi_bmof,ideapad_laptop video                  53248  2 ideapad_laptop,i915  ##### interfaces ########################  ##### ifconfig ##########################  1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000     link/loopback  brd      inet 127.0.0.1/8 scope host lo        valid_lft forever preferred_lft forever     inet6 ::1/128 scope host         valid_lft forever preferred_lft forever 2: enp6s0: 
 mtu 1500 qdisc fq_codel state UP group default qlen 1000     link/ether  brd  65: usb0: 
 mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000     link/ether  brd      inet 192.168.42.217/24 brd 192.168.42.255 scope global dynamic noprefixroute usb0        valid_lft 3593sec preferred_lft 3593sec     inet6 fe80::5388:891a:58c3:31db/64 scope link noprefixroute         valid_lft forever preferred_lft forever  ##### iwconfig ##########################  lo        no wireless extensions.  enp6s0    no wireless extensions.  usb0      no wireless extensions.  ##### route #############################  default via 192.168.42.129 dev usb0 proto dhcp metric 105  169.254.0.0/16 dev usb0 scope link metric 1000  192.168.42.0/24 dev usb0 proto kernel scope link src 192.168.42.217 metric 105   ##### resolv.conf #######################  [777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']  nameserver 127.0.0.53 options edns0 trust-ad  ##### network managers ##################  Installed:      NetworkManager  Running:  root         623       1  0 08:03 ?        00:00:17 /usr/sbin/NetworkManager --no-daemon  ##### NetworkManager info ###############  GENERAL.DEVICE:                         usb0 GENERAL.TYPE:                           ethernet GENERAL.NM-TYPE:                        NMDeviceEthernet GENERAL.DBUS-PATH:                      /org/freedesktop/NetworkManager/Devices/65 GENERAL.VENDOR:                         Samsung Electronics Co., Ltd GENERAL.PRODUCT:                        GT-I9070 (network tethering, USB debugging enabled) GENERAL.DRIVER:                         rndis_host GENERAL.DRIVER-VERSION:                 5.11.0-37-generic GENERAL.FIRMWARE-VERSION:               RNDIS device GENERAL.HWADDR:                          GENERAL.MTU:                            1500 GENERAL.STATE:                          100 (connected) GENERAL.REASON:                         0 (No reason given) GENERAL.IP4-CONNECTIVITY:               4 (full) GENERAL.IP6-CONNECTIVITY:               3 (limited) GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/net/usb0 GENERAL.IP-IFACE:                       usb0 GENERAL.IS-SOFTWARE:                    no GENERAL.NM-MANAGED:                     yes GENERAL.AUTOCONNECT:                    yes GENERAL.FIRMWARE-MISSING:               no GENERAL.NM-PLUGIN-MISSING:              no GENERAL.PHYS-PORT-ID:                   -- GENERAL.CONNECTION:                     Conexión cableada 1 GENERAL.CON-UUID:                       aeeb4a90-bc73-35f6-a89c-4af2fbc422c4 GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/84 GENERAL.METERED:                        yes (guessed) CAPABILITIES.CARRIER-DETECT:            yes CAPABILITIES.SPEED:                     unknown CAPABILITIES.IS-SOFTWARE:               no CAPABILITIES.SRIOV:                     no INTERFACE-FLAGS.UP:                     yes INTERFACE-FLAGS.LOWER-UP:               yes INTERFACE-FLAGS.CARRIER:                yes WIRED-PROPERTIES.CARRIER:               on IP4.ADDRESS[1]:                         192.168.42.217/24 IP4.GATEWAY:                            192.168.42.129 IP4.ROUTE[1]:                           dst = 0.0.0.0/0, nh = 192.168.42.129, mt = 105 IP4.ROUTE[2]:                           dst = 192.168.42.0/24, nh = 0.0.0.0, mt = 105 IP4.ROUTE[3]:                           dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000 IP4.DNS[1]:                             192.168.42.129 DHCP4.OPTION[1]:                        dhcp_lease_time = 3600 DHCP4.OPTION[2]:                        domain_name_servers = 192.168.42.129 DHCP4.OPTION[3]:                        expiry = 1633793806 DHCP4.OPTION[4]:                        host_name = LON-PC DHCP4.OPTION[5]:                        ip_address = 192.168.42.217 DHCP4.OPTION[6]:                        next_server = 192.168.42.129 DHCP4.OPTION[7]:                        requested_broadcast_address = 1 DHCP4.OPTION[8]:                        requested_domain_name = 1 DHCP4.OPTION[9]:                        requested_domain_name_servers = 1 DHCP4.OPTION[10]:                       requested_domain_search = 1 DHCP4.OPTION[11]:                       requested_host_name = 1 DHCP4.OPTION[12]:                       requested_interface_mtu = 1 DHCP4.OPTION[13]:                       requested_ms_classless_static_routes = 1 DHCP4.OPTION[14]:                       requested_nis_domain = 1 DHCP4.OPTION[15]:                       requested_nis_servers = 1 DHCP4.OPTION[16]:                       requested_ntp_servers = 1 DHCP4.OPTION[17]:                       requested_rfc3442_classless_static_routes = 1 DHCP4.OPTION[18]:                       requested_root_path = 1 DHCP4.OPTION[19]:                       requested_routers = 1 DHCP4.OPTION[20]:                       requested_static_routes = 1 DHCP4.OPTION[21]:                       requested_subnet_mask = 1 DHCP4.OPTION[22]:                       requested_time_offset = 1 DHCP4.OPTION[23]:                       requested_wpad = 1 DHCP4.OPTION[24]:                       routers = 192.168.42.129 DHCP4.OPTION[25]:                       subnet_mask = 255.255.255.0 IP6.ADDRESS[1]:                         fe80::5388:891a:58c3:31db/64 IP6.GATEWAY:                            -- IP6.ROUTE[1]:                           dst = fe80::/64, nh = ::, mt = 105 CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/64 CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   aeeb4a90-bc73-35f6-a89c-4af2fbc422c4 | Conexión cableada 1  GENERAL.DEVICE:                         enp6s0 GENERAL.TYPE:                           ethernet GENERAL.NM-TYPE:                        NMDeviceEthernet GENERAL.DBUS-PATH:                      /org/freedesktop/NetworkManager/Devices/2 GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd. GENERAL.PRODUCT:                        RTL810xE PCI Express Fast Ethernet controller GENERAL.DRIVER:                         r8169 GENERAL.DRIVER-VERSION:                 5.11.0-37-generic GENERAL.FIRMWARE-VERSION:               -- GENERAL.HWADDR:                          GENERAL.MTU:                            1500 GENERAL.STATE:                          30 (disconnected) GENERAL.REASON:                         0 (No reason given) GENERAL.IP4-CONNECTIVITY:               1 (none) GENERAL.IP6-CONNECTIVITY:               1 (none) GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.2/0000:06:00.0/net/enp6s0 GENERAL.IP-IFACE:                       -- GENERAL.IS-SOFTWARE:                    no GENERAL.NM-MANAGED:                     yes GENERAL.AUTOCONNECT:                    yes GENERAL.FIRMWARE-MISSING:               no GENERAL.NM-PLUGIN-MISSING:              no GENERAL.PHYS-PORT-ID:                   -- GENERAL.CONNECTION:                     -- GENERAL.CON-UUID:                       -- GENERAL.CON-PATH:                       -- GENERAL.METERED:                        unknown CAPABILITIES.CARRIER-DETECT:            yes CAPABILITIES.SPEED:                     100 Mb/s CAPABILITIES.IS-SOFTWARE:               no CAPABILITIES.SRIOV:                     no INTERFACE-FLAGS.UP:                     yes INTERFACE-FLAGS.LOWER-UP:               yes INTERFACE-FLAGS.CARRIER:                yes WIRED-PROPERTIES.CARRIER:               on CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/1 CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   add72843-8b69-370f-b749-f841554c5bf9 | netplan-enp6s0  ##### NetworkManager.state ##############  [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true  ##### NetworkManager config #############  [[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]] [connection] wifi.powersave = 3  [[/etc/NetworkManager/NetworkManager.conf]] [main] plugins=ifupdown,keyfile [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no  [[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]] [main] dns=systemd-resolved  [[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]] [keyfile] unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma  [[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]] [connectivity] uri=http://connectivity-check.ubuntu.com/  [[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]] [device-mac-addr-change-wifi] match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl wifi.scan-rand-mac-address=no  ##### NetworkManager profiles ###########  ##### Netplan config ####################  [/etc/netplan/01-netcfg.yaml] network:   version: 2   renderer: NetworkManager   ethernets:     enp6s0:       dhcp4: true  [/etc/netplan/01-network-manager-all.yaml] network:   version: 2   renderer: NetworkManager  ##### modprobe options ##################  [/etc/modprobe.d/amd64-microcode-blacklist.conf] blacklist microcode  [/etc/modprobe.d/blacklist-ath_pci.conf] blacklist ath_pci  [/etc/modprobe.d/blacklist.conf] blacklist evbug blacklist usbmouse blacklist usbkbd blacklist eepro100 blacklist de4x5 blacklist eth1394 blacklist snd_intel8x0m blacklist snd_aw2 blacklist prism54 blacklist bcm43xx blacklist garmin_gps blacklist asus_acpi blacklist snd_pcsp blacklist pcspkr blacklist amd76x_edac  [/etc/modprobe.d/blacklist-rare-network.conf] alias net-pf-3 off alias net-pf-6 off alias net-pf-9 off alias net-pf-11 off alias net-pf-12 off alias net-pf-19 off alias net-pf-21 off alias net-pf-36 off  [/etc/modprobe.d/intel-microcode-blacklist.conf] blacklist microcode  [/etc/modprobe.d/iwlwifi.conf] remove iwlwifi \ (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \ && /sbin/modprobe -r mac80211