Problemas com Redes [RESOLVIDO]

bob-construtor
(usa Linux Mint)

Enviado em 29/03/2016 - 18:56h

Olá, entrei no mundo do Linux há alguns meses. Sou leigo em muita coisa ainda. Ultimamente tenho enfrentado problemas com a conexão da rede wi-fi, o famoso problema "conecta, mas não navega". Consigo usar normalmente por uns 10 minutos e então ela para de funcionar, depois de 5 minutos o o wi-fi desconecta e não consigo restabelecer a conexão. Já procurei diversas vezes, mas não consegui resolver o problema. Quem puder ajudar, agradeço muito.
Uso o Linux Mint 17.2 'Rafaela' cinnamon 64-bit.

luiztux
(usa Gentoo)

Enviado em 29/03/2016 - 20:12h

Noite...

Já deu uma olhada nestes links?

https://www.vivaolinux.com.br/dica/Ubuntu-1404-Conecta-mas-nao-navega-Resolvido
https://www.vivaolinux.com.br/dica/Ubuntu-1404-Conecta-mas-nao-navega-Resolvido-1
https://www.vivaolinux.com.br/topico/UbuntuBR/Ubuntu-1404-wifi-conecta-mas-nao-navega

Não é o Mint, mas os procedimentos são os mesmos.

Se não der certo retorna aí.

Boa sorte.

-----------------------------------''----------------------------------
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

bob-construtor
(usa Linux Mint)

Enviado em 30/03/2016 - 15:32h

Luiz, eu já tinha tentado alterar as configurações do ipv4. E quanto a questão de instalar os drivers corretos, eu tentei e não deu certo, fora as vezes que o download parou graças ao meu problema com a conexão.
Caso saiba mais alguma forma de me ajudar, agradeço.

luiztux
(usa Gentoo)

Enviado em 30/03/2016 - 16:13h

Ok.

Vamos à outros procedimentos.

Abre teu terminal e rode os seguintes comandos:

Do dmesg pode postar apenas as linhas referentes à wlan0.

dmesg 

lspci -v 

iwconfig 

iw dev wlan0 scan | grep 'SSID\|dB\|channel' 

e mais este por enquanto...

lshw -C network 

Poste a saída de todos aqui, entre as tags de código (</> ou alt+c) para facilitar a leitura.

Caso não tenha algum destes utilitários instalados, instale-os via gerenciador de programas.

-----------------------------------''----------------------------------
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

bob-construtor
(usa Linux Mint)

Enviado em 30/03/2016 - 17:58h

[   27.456509] wlan0: authenticate with 9c:97:26:df:19:e3

[   27.466672] wlan0: send auth to 9c:97:26:df:19:e3 (try 1/3)

[   27.468208] wlan0: authenticated

[   27.470616] wlan0: associate with 9c:97:26:df:19:e3 (try 1/3)

[   27.474012] wlan0: RX AssocResp from 9c:97:26:df:19:e3 (capab=0x411 status=0 aid=2)

[   27.474134] wlan0: associated

 

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, fast devsel, latency 0

	Capabilities: [e0] Vendor Specific Information: Len=0c <?>



00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, fast devsel, latency 0, IRQ 60

	Memory at f7800000 (64-bit, non-prefetchable) [size=4M]

	Memory at e0000000 (64-bit, prefetchable) [size=256M]

	I/O ports at f000 [size=64]

	Expansion ROM at <unassigned> [disabled]

	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-

	Capabilities: [d0] Power Management version 2

	Capabilities: [a4] PCI Advanced Features

	Kernel driver in use: i915



00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, fast devsel, latency 0, IRQ 62

	Memory at f7e14000 (64-bit, non-prefetchable) [size=16K]

	Capabilities: [50] Power Management version 2

	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-

	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00

	Kernel driver in use: snd_hda_intel



00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) (prog-if 30 [XHCI])

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, medium devsel, latency 0, IRQ 56

	Memory at f7e00000 (64-bit, non-prefetchable) [size=64K]

	Capabilities: [70] Power Management version 2

	Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+

	Kernel driver in use: xhci_hcd



00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, fast devsel, latency 0, IRQ 61

	Memory at f7e1d000 (64-bit, non-prefetchable) [size=32]

	Capabilities: [50] Power Management version 3

	Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+

	Kernel driver in use: mei_me



00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, fast devsel, latency 0, IRQ 63

	Memory at f7e10000 (64-bit, non-prefetchable) [size=16K]

	Capabilities: [50] Power Management version 3

	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+

	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00

	Capabilities: [100] Virtual Channel

	Kernel driver in use: snd_hda_intel



00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4) (prog-if 00 [Normal decode])

	Flags: bus master, fast devsel, latency 0

	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0

	I/O behind bridge: 00002000-00002fff

	Memory behind bridge: 7e200000-7e3fffff

	Prefetchable memory behind bridge: 000000007e400000-000000007e5fffff

	Capabilities: [40] Express Root Port (Slot+), MSI 00

	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-

	Capabilities: [90] Subsystem: CLEVO/KAPOK Computer Device 5496

	Capabilities: [a0] Power Management version 3

	Kernel driver in use: pcieport



00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])

	Flags: bus master, fast devsel, latency 0

	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0

	I/O behind bridge: 0000e000-0000efff

	Memory behind bridge: f7d00000-f7dfffff

	Capabilities: [40] Express Root Port (Slot+), MSI 00

	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-

	Capabilities: [90] Subsystem: CLEVO/KAPOK Computer Device 5496

	Capabilities: [a0] Power Management version 3

	Capabilities: [100] #00

	Capabilities: [200] L1 PM Substates

	Kernel driver in use: pcieport



00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])

	Flags: bus master, fast devsel, latency 0

	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0

	I/O behind bridge: 0000d000-0000dfff

	Memory behind bridge: f7c00000-f7cfffff

	Capabilities: [40] Express Root Port (Slot+), MSI 00

	Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-

	Capabilities: [90] Subsystem: CLEVO/KAPOK Computer Device 5496

	Capabilities: [a0] Power Management version 3

	Capabilities: [100] #00

	Capabilities: [200] L1 PM Substates

	Kernel driver in use: pcieport



00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) (prog-if 20 [EHCI])

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, medium devsel, latency 0, IRQ 23

	Memory at f7e1b000 (32-bit, non-prefetchable) [size=1K]

	Capabilities: [50] Power Management version 3

	Capabilities: [58] Debug port: BAR=1 offset=00a0

	Capabilities: [98] PCI Advanced Features

	Kernel driver in use: ehci-pci



00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, medium devsel, latency 0

	Capabilities: [e0] Vendor Specific Information: Len=0c <?>

	Kernel driver in use: lpc_ich



00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 57

	I/O ports at f0b0 [size=8]

	I/O ports at f0a0 [size=4]

	I/O ports at f090 [size=8]

	I/O ports at f080 [size=4]

	I/O ports at f060 [size=32]

	Memory at f7e1a000 (32-bit, non-prefetchable) [size=2K]

	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-

	Capabilities: [70] Power Management version 3

	Capabilities: [a8] SATA HBA v1.0

	Kernel driver in use: ahci



00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)

	Subsystem: CLEVO/KAPOK Computer Device 5496

	Flags: medium devsel, IRQ 255

	Memory at f7e19000 (64-bit, non-prefetchable) [size=256]

	I/O ports at f040 [size=32]



02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter

	Subsystem: Realtek Semiconductor Co., Ltd. Device b729

	Flags: bus master, fast devsel, latency 0, IRQ 18

	I/O ports at e000 [size=256]

	Memory at f7d00000 (64-bit, non-prefetchable) [size=16K]

	Capabilities: [40] Power Management version 3

	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+

	Capabilities: [70] Express Endpoint, MSI 00

	Capabilities: [100] Advanced Error Reporting

	Capabilities: [140] Device Serial Number 00-23-b7-fe-ff-4c-e0-00

	Capabilities: [150] Latency Tolerance Reporting

	Capabilities: [158] L1 PM Substates

	Kernel driver in use: rtl8723be



03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5287 (rev 01)

	Subsystem: CLEVO/KAPOK Computer Device 5494

	Flags: bus master, fast devsel, latency 0, IRQ 59

	Memory at f7c15000 (32-bit, non-prefetchable) [size=4K]

	Expansion ROM at f7c00000 [disabled] [size=64K]

	Capabilities: [40] Power Management version 3

	Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+

	Capabilities: [70] Express Endpoint, MSI 00

	Capabilities: [b0] MSI-X: Enable- Count=1 Masked-

	Capabilities: [d0] Vital Product Data

	Capabilities: [100] Advanced Error Reporting

	Capabilities: [140] Virtual Channel

	Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00

	Capabilities: [170] Latency Tolerance Reporting

	Capabilities: [178] L1 PM Substates

	Kernel driver in use: rtsx_pci



03:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)

	Subsystem: CLEVO/KAPOK Computer Device 5494

	Flags: bus master, fast devsel, latency 0, IRQ 58

	I/O ports at d000 [size=256]

	Memory at f7c14000 (64-bit, non-prefetchable) [size=4K]

	Memory at f7c10000 (64-bit, non-prefetchable) [size=16K]

	Capabilities: [40] Power Management version 3

	Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+

	Capabilities: [70] Express Endpoint, MSI 01

	Capabilities: [b0] MSI-X: Enable- Count=4 Masked-

	Capabilities: [d0] Vital Product Data

	Capabilities: [100] Advanced Error Reporting

	Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00

	Capabilities: [170] Latency Tolerance Reporting

	Capabilities: [178] L1 PM Substates

	Kernel driver in use: r8169 

eth0      no wireless extensions.



wlan0     IEEE 802.11bgn  ESSID:"GUIMARAES1"  

          Mode:Managed  Frequency:2.412 GHz  Access Point: 9C:97:26:DF:19:E3   

          Bit Rate=6.5 Mb/s   Tx-Power=20 dBm   

          Retry short limit:7   RTS thr=2347 B   Fragment thr:off

          Encryption key:off

          Power Management:off

          Link Quality=60/70  Signal level=-50 dBm  

          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

          Tx excessive retries:0  Invalid misc:1   Missed beacon:0



lo        no wireless extensions.

 

Quanto ao "iw dev wlan0 sacn | grep 'SSID\|dB\|channel' ". Ocorreu o seguinte código e não sei se era bem de se esperar isso. Caso não seja oque estava procurando, por favor, me diga como proceder.

	

dev <devname> ibss join <SSID> <freq in MHz> [HT20|HT40+|HT40-|NOHT] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>] [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] [key d:0:abcde]

		Join the IBSS cell with the given SSID, if it doesn't exist create

		join/create a cell on a different frequency. When a fixed BSSID is

		requested use that BSSID and do not adopt another cell's BSSID even

		if it has higher TSF and the same SSID. If an IBSS is created, create

		List all gathered channel survey data

		Scan on the given frequencies and probe for the given SSIDs

		SSIDs (or wildcard if not given) unless passive scanning is requested.

	dev <devname> connect [-w] <SSID> [<freq in MHz>] [<bssid>] [key 0:abcde d:1:6162636465]

		Join the network with the given SSID (and frequency, BSSID).

	dev <devname> offchannel <freq> <duration>

		Leave operating channel and go to the given channel for a while.

	dev <devname> set channel <channel> [HT20|HT40+|HT40-]

	phy <phyname> set channel <channel> [HT20|HT40+|HT40-]

		Set frequency/channel the hardware is using, including HT

 

*-network               

       descrição: Interface sem fio

       produto: RTL8723BE PCIe Wireless Network Adapter

       fabricante: Realtek Semiconductor Co., Ltd.

       ID físico: 0

       informações do barramento: pci@0000:02:00.0

       nome lógico: wlan0

       versão: 00

       serial: 30:10:b3:21:39:d9

       largura: 64 bits

       clock: 33MHz

       capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless

       configuração: broadcast=yes driver=rtl8723be driverversion=3.16.0-38-generic firmware=N/A ip=192.168.1.18 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn

       recursos: irq:18 porta de E/S:e000(tamanho=256) memória:f7d00000-f7d03fff

  *-network

       descrição: Ethernet interface

       produto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller

       fabricante: Realtek Semiconductor Co., Ltd.

       ID físico: 0.1

       informações do barramento: pci@0000:03:00.1

       nome lógico: eth0

       versão: 12

       serial: 80:fa:5b:a0:ef:de

       tamanho: 10Mbit/s

       capacidade: 1Gbit/s

       largura: 64 bits

       clock: 33MHz

       capacidades: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation

       configuração: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8411-2_0.0.1 07/08/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s

       recursos: irq:58 porta de E/S:d000(tamanho=256) memória:f7c14000-f7c14fff memória:f7c10000-f7c13fff

 

bob-construtor
(usa Linux Mint)

Enviado em 31/03/2016 - 17:55h

Aparentemente está tudo certo após eu usar a solução do primeiro link.
Usei durante uns 30 min e nenhum erro até agora. Porém se realmente resolveu, eu queria entende como, pois eu já tinha este modulo instalado.

luiztux
(usa Gentoo)

Enviado em 01/04/2016 - 08:42h

E aí? Como estamos com este driver? Firme e forte?

Uma boa forma de você conseguir informações sobre o driver/módulo, é:

modinfo realtek8723be 

Aquelas opções passadas no arquivo conf, são para o Kernel saber como gerenciar tal driver em relação à economia de energia, "hibernando", por assim dizer, o driver/módulo com as opções 0 (desligado) e 1 (ligado). Estas mesmas opções você irá encontrar no comando acima e no código fonte do driver/módulo. De resto, se quiser ir mais a fundo, procure saber como o Kernel gerencia cada driver, suas diferentes opções para cada um, etc. etc.

Este driver tem um histórico grande em relação à este tipo de problema. Geralmente esta opção funciona, mas para alguns, conforme vi, causou um Kernel Panic. Que bom que não foi teu caso...rs


-----------------------------------''----------------------------------
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

bob-construtor
(usa Linux Mint)

Enviado em 02/04/2016 - 10:05h

Muito obrigado pela ajuda Luiz. Tudo resolvido. Grande abraço.