Eis o resultado do comando $ sudo lshw -C network agora , em uma situação normal com Link speed 72 Mb/s:
$ sudo lshw -C network
*-network
description: Wireless interface
product: BCM4313 802.11bgn Wireless Network Adapter
vendor: Broadcom Limited
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 01
serial: 30:14:4a:86:a4:cf
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=192.168.0.14 latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:16 memory:f6c00000-f6c03fff
*-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: 06
serial: 50:b7:c3:02:58:0c
size: 10Mbit/s
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 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:19 ioport:b000(size=256) memory:e2c04000-e2c04fff memory:e2c00000-e2c03fff
E eis o resultado do comando $ wifi-status agora em uma situação normal onde apresenta Link speed 72 Mb/s:
Every 1,0s: iw wlp2s0 info; ip addr show wlp2s0; ip route; echo; (journalctl -b --no-pager -q | grep -i wlp2s0 | tail -n 1... rf511: Sat Jan 5 09:19:56 2019
Interface wlp2s0
ifindex 3
wdev 0x1
addr 30:14:4a:86:a4:cf
ssid Marte
type managed
wiphy 0
txpower 200.00 dBm
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 30:14:4a:86:a4:cf brd ff:ff:ff:ff:ff:ff
inet 192.168.0.14/24 brd 192.168.0.255 scope global dynamic noprefixroute wlp2s0
valid_lft 85721sec preferred_lft 85721sec
default via 192.168.0.1 dev wlp2s0 proto dhcp metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.14 metric 600
jan 05 09:16:32 rf511 wpa_supplicant[907]: wlp2s0: WPA: Group rekeying completed with 70:03:7e:a0:47:e5 [GTK=CCMP]
jan 05 09:16:32 rf511 wpa_supplicant[907]: wlp2s0: WPA: Group rekeying completed with 70:03:7e:a0:47:e5 [GTK=CCMP]
jan 05 09:08:38 rf511 nm-dispatcher[1028]: req:2 'up' [wlp2s0]: start running ordered scripts...
jan 05 09:08:38 rf511 nm-dispatcher[1028]: req:2 'up' [wlp2s0]: new request (1 scripts)
jan 05 09:08:38 rf511 NetworkManager[889]: <info> [1546686518.5662] device (wlp2s0): Activation: successful, device activated.
jan 05 09:08:38 rf511 NetworkManager[889]: <info> [1546686518.5660] policy: set 'Marte' (wlp2s0) as default for IPv4 routing and DNS
jan 05 09:08:38 rf511 NetworkManager[889]: <info> [1546686518.5594] device (wlp2s0): state change: secondaries -> activated (reason 'none', sys-iface-state:
'managed')
jan 05 09:08:38 rf511 NetworkManager[889]: <info> [1546686518.5591] device (wlp2s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: '
managed')
jan 05 09:08:38 rf511 NetworkManager[889]: <info> [1546686518.5585] device (wlp2s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'ma
naged')
jan 05 09:08:38 rf511 avahi-daemon[824]: Registering new address record for 192.168.0.14 on wlp2s0.IPv4.
PING 8.8.8.8 (8.8.8.8) from 192.168.0.14 wlp2s0: 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=43 time=56.1 ms
--- 8.8.8.8 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 56.156/56.156/56.156/0.000 ms
Outra coisa, dentro do meu Modem, observei que o RX e TX estão em condições normais, tanto quando a velocidade está baixa quanto alta, os valores são parecidos, exemplo:
Ontem a noite (ruim, Link Speed 5 Mb/s):
NÍVEL DO SINAL
TX 50.0 DBMV
RX 1.2 DBMV
Hoje pela manhã (normal, Link Speed 72 Mb/s):
NÍVEL DO SINAL
TX 50.0 DBMV
RX 1.1 DBMV