Estou testando o Kubuntu 22.10 por algumas semanas. Estava funcionando bem antes, mas desde anteontem nenhuma conexão de rede que eu faço não tem velocidade de download ou upload. Descartei qualquer problema de hardware ou roteador, pois o sistema Ubuntu no mesmo dispositivo está funcionando perfeitamente (eu tenho uma configuração de inicialização dupla). Tentei pesquisar nos fóruns, mas não encontrei nada que funcionasse para mim. Tentei desativar o firewall, mas também não funcionou. Ele pode se conectar à página do administrador do roteador, mas não pode se conectar a nenhuma outra página.
Não sei se ajudaria, mas esta é a saída paralshw -c Network
*-network
description: Wireless interface
product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 00
serial: 28:39:26:25:64:ef
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtw_8821ce driverversion=5.19.0-28-generic firmware=N/A ip=192.168.1.102 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:141 ioport:4000(size=256) memory:a4300000-a430ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 10
serial: e8:6a:64:e1:db:e1
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.19.0-28-generic firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=twisted pair
resources: irq:17 ioport:3000(size=256) memory:a4204000-a4204fff memory:a4200000-a4203fff
Esta é a saída paraiwconfig
lo no wireless extensions.
enp3s0 no wireless extensions.
wlp2s0 IEEE 802.11 ESSID:"Shitdroid"
Mode:Managed Frequency:2.462 GHz Access Point: 58:D9:D5:53:A8:D8
Bit Rate=39 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-24 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:7 Missed beacon:0
lxcbr0 no wireless extensions.
Esta é a saída para ifconfig
enp3s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether e8:6a:64:e1:db:e1 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 51208 bytes 4477590 (4.4 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 51208 bytes 4477590 (4.4 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lxcbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 10.0.3.1 netmask 255.255.255.0 broadcast 10.0.3.255
ether 00:16:3e:00:00:00 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.100 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::2a39:26ff:fe25:64ef prefixlen 64 scopeid 0x20<link>
ether 28:39:26:25:64:ef txqueuelen 1000 (Ethernet)
RX packets 27 bytes 3374 (3.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 61 bytes 13406 (13.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
esta é a saída deroute
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.0.1 0.0.0.0 UG 600 0 0 wlp2s0
10.0.3.0 0.0.0.0 255.255.255.0 U 0 0 0 lxcbr0
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 lxcbr0
192.168.0.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp2s0
Todas as saídas foram obtidas quando conectadas ao wifi. Verifiquei o driver usando lsmode o driver rtw88_8821ceaparece na lista. Lamento se for um problema de noob, mas qualquer ajuda seria muito apreciada.