Instalei recentemente o Ubuntu 16.10 no meu desktop HP sem problemas. Como a placa de rede estava inativa, eu tive que comprar um adaptador WiFi RTL8187 para conectar ao meu roteador ADSL. O Ubuntu inicialmente reconheceu o adaptador.
O problema é que depois de 5 minutos, não consigo acessar a Internet. Ping do endereço IP do meu roteador, não recebo resposta / a consulta é rejeitada. Isso acontece mesmo que o ícone da Wi-Fi mostre que está conectado.
Encontrei muitas soluções potenciais para esse problema na Internet e experimentei todas, mas o problema continua.
Eu bota o Windows 7 e o Ubuntu. No Windows 7, testei esse adaptador várias vezes e ele funciona muito bem sem problemas. Eu permaneço conectado durante todo o dia.
Meu roteador está configurado para usar a opção de modo sem fio: 802.11b + g.
Alguém por favor pode me ajudar com isso? Eu quero usar o Ubuntu, mas isso torna inutilizável.
Instalei o Ubuntu 16.10 em uma máquina virtual por motivos de segurança e executei o script wireless-info, que forneceu os seguintes resultados:
########## wireless info START ##########
Report from: 12 Dec 2016 11:55 WET +0000
Booted last: 12 Dec 2016 00:00 WET +0000
Script from: 08 Jul 2016 02:16 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.10
Release: 16.10
Codename: yakkety
##### kernel ############################
Linux 4.8.0-22-generic #24-Ubuntu SMP Sat Oct 8 09:15:00 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash
##### desktop ###########################
sed: can't read /root/.dmrc: No such file or directory
Could not be determined.
##### lspci #############################
##### lsusb #############################
Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
rtl8187 40960 0
mac80211 757760 1 rtl8187
eeprom_93cx6 16384 1 rtl8187
cfg80211 581632 2 mac80211,rtl8187
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
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 1 (Local Loopback)
RX packets 62343 bytes 3794369 (3.7 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 62343 bytes 3794369 (3.7 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlx24050f4a6f97: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.166 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::9b1a:659:c586:e53b prefixlen 64 scopeid 0x20<link>
ether <MAC address> txqueuelen 1000 (Ethernet)
RX packets 22290 bytes 24879438 (24.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 18818 bytes 2261851 (2.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
##### iwconfig ##########################
lo no wireless extensions.
wlx24050f4a6f97 IEEE 802.11 ESSID:"TP-LINK_69991E"
Mode:Managed Frequency:2.422 GHz Access Point: <MAC 'TP-LINK_69991E' [AC1]>
Bit Rate=12 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thrff Fragment thrff
Encryption keyff
Power Managementff
Link Quality=52/70 Signal level=-58 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2709 Invalid misc:341 Missed beacon:0
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 600 0 0 wlx24050f4a6f97
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlx24050f4a6f97
192.168.1.0 0.0.0.0 255.255.255.0 U 600 0 0 wlx24050f4a6f97
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 837 1 0 10:49 ? 00:00:02 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlx24050f4a6f97
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Manufacturer_Realtek_RTL8187_
GENERAL.PRODUCT: RTL8187_Wireless
GENERAL.DRIVER: rtl8187
GENERAL.DRIVER-VERSION: 4.8.0-22-generic
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR: <MAC address>
GENERAL.MTU: 0
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:11.0/0000:02:00.0/usb1/1-1/1-1:1.0/net/wlx24050f4a6f97
GENERAL.IP-IFACE: wlx24050f4a6f97
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: TP-LINK_69991E 1
GENERAL.CON-UUID: b44e875e-b412-45b2-8a4f-80f6e68f943a
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 54 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: no
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0,1}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 70f08467-35b5-440d-8b50-f7399b32e917 | TP-LINK_69991E
CONNECTIONS.AVAILABLE-CONNECTIONS[2]: b44e875e-b412-45b2-8a4f-80f6e68f943a | TP-LINK_69991E 1
IP4.ADDRESS[1]: 192.168.1.166/24
IP4.GATEWAY: 192.168.1.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 8.8.8.8
IP6.ADDRESS[1]: fe80::9b1a:659:c586:e53b/64
IP6.GATEWAY:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
TP-LINK_69991E <MAC 'TP-LINK_69991E' [AC1]> Infra 3 2422 MHz 54 Mbit/s 61 ▂▄▆_ WPA2 yes *
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/TP-LINK_69991E]] (600 root)
[connection] id=TP-LINK_69991E | type=wifi | permissions=user:ubuntu:;
[wifi] mac-address=<MAC address> | mac-address-blacklist= | ssid=TP-LINK_69991E
[ipv4] method=manual
[ipv6] method=ignore
[[/etc/NetworkManager/system-connections/TP-LINK_69991E 1]] (600 root)
[connection] id=TP-LINK_69991E 1 | type=wifi | permissions=user:toto:;
[wifi] mac-address=<MAC address> | mac-address-blacklist= | ssid=TP-LINK_69991E
[ipv4] method=manual
[ipv6] method=auto
##### iw reg get ########################
Region: Africa/Casablanca (based on set time zone)
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 17), (N/A)
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS
(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
##### iwlist channels ###################
lo no frequency information.
wlx24050f4a6f97 11 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Current Frequency:2.422 GHz (Channel 3)
##### iwlist scan #######################
lo Interface doesn't support scanning.
Channel occupancy:
1 APs on Frequency:2.422 GHz (Channel 3)
wlx24050f4a6f97 Scan completed :
Cell 01 - Address: <MAC 'TP-LINK_69991E' [AC1]>
Channel:3
Frequency:2.422 GHz (Channel 3)
Quality=52/70 Signal level=-58 dBm
Encryption keyn
ESSID:"TP-LINK_69991E"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000010533bae79
Extra: Last beacon: 464ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
##### module infos ######################
[rtl8187]
filename: /lib/modules/4.8.0-22-generic/kernel/drivers/net/wireless/realtek/rtl818x/rtl8187/rtl8187.ko
license: GPL
description: RTL8187/RTL8187B USB wireless driver
author: Larry Finger <[email protected]>
author: Hin-Tak Leung <[email protected]>
author: Herton Ronaldo Krzesinski <[email protected]>
author: Andrea Merello <[email protected]>
author: Michael Wu <[email protected]>
srcversion: 745646D3ABF7B00F320D6AB
depends: mac80211,eeprom_93cx6,cfg80211
intree: Y
vermagic: 4.8.0-22-generic SMP mod_unload modversions
[mac80211]
filename: /lib/modules/4.8.0-22-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: BDE5CB0CC0A980B65D19934
depends: cfg80211
intree: Y
vermagic: 4.8.0-22-generic SMP mod_unload modversions
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algoefault rate control algorithm for mac80211 to use (charp)
[cfg80211]
filename: /lib/modules/4.8.0-22-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: F170FED576AF12B070D2E69
depends:
intree: Y
vermagic: 4.8.0-22-generic SMP mod_unload modversions
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghzisable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/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 i2c_i801
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/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
[/etc/modprobe.d/rtl8187.conf]
options rtl8187 debug=0 disqble_watchdog=N fwlps=N swlps=Y swenc=Y ips=N msi=0
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 807.773438] rtl8187: unknown parameter 'debug' ignored
[ 807.773540] rtl8187: unknown parameter 'disqble_watchdog' ignored
[ 807.773542] rtl8187: unknown parameter 'fwlps' ignored
[ 807.773543] rtl8187: unknown parameter 'swlps' ignored
[ 807.773543] rtl8187: unknown parameter 'swenc' ignored
[ 807.773544] rtl8187: unknown parameter 'ips' ignored
[ 807.773545] rtl8187: unknown parameter 'msi' ignored
[ 810.325071] ieee80211 phy0: hwaddr <MAC address>, RTL8187vB (default) V1 + rtl8225z2, rfkill mask 2
[ 810.508248] rtl8187: Customer ID is 0x00
[ 810.569057] rtl8187: wireless switch is on
[ 810.776583] rtl8187 1-1:1.0 wlx24050f4a6f97: renamed from wlan0
[ 810.992168] IPv6: ADDRCONF(NETDEV_UP): wlx24050f4a6f97: link is not ready (repeated 3 times)
[ 829.702514] wlx24050f4a6f97: authenticate with <MAC 'TP-LINK_69991E' [AC1]>
[ 830.634225] wlx24050f4a6f97: send auth to <MAC 'TP-LINK_69991E' [AC1]> (try 1/3)
[ 830.639137] wlx24050f4a6f97: authenticated
[ 830.660729] wlx24050f4a6f97: associate with <MAC 'TP-LINK_69991E' [AC1]> (try 1/3)
[ 830.666698] wlx24050f4a6f97: RX AssocResp from <MAC 'TP-LINK_69991E' [AC1]> (capab=0x431 status=0 aid=6)
[ 830.676193] wlx24050f4a6f97: associated
[ 830.677069] IPv6: ADDRCONF(NETDEV_CHANGE): wlx24050f4a6f97: link becomes ready
########## wireless info END ############
Obrigado antecipadamente.