ubuntu 14.04 无线网络不稳定

[aires-yf]

ubuntu 12 13 14 都有用过,目前是14.04,以前没出现过,或者是我自己没注意.最近是wifi老掉线,隔一会就掉了,但networkmanager显示连接状态,重新连接wifi又好了,但过不了多久又会是一样的.
thinkpad x230,
麻烦各位帮忙看看,这里先谢谢了!


以下是一些参数:
sudo ifconfig -a
eth0 Link encap:以太网 硬件地址 3c:97:0e:35:44:88
UP BROADCAST MULTICAST MTU:1500 跃点数:1
接收数据包:0 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:0 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:1000
接收字节:0 (0.0 B) 发送字节:0 (0.0 B)
中断:20 Memory:f2500000-f2520000

lo Link encap:本地环回
inet 地址:127.0.0.1 掩码:255.0.0.0
inet6 地址: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 跃点数:1
接收数据包:1376 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:1376 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:0
接收字节:125189 (125.1 KB) 发送字节:125189 (125.1 KB)

wlan0 Link encap:以太网 硬件地址 20:68:9d:1b:29:6c
inet 地址:10.100.116.16 广播:10.100.119.255 掩码:255.255.252.0
inet6 地址: fe80::2268:9dff:fe1b:296c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1
接收数据包:9892 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:8555 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:1000
接收字节:5322468 (5.3 MB) 发送字节:1122929 (1.1 MB)

sudo cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

sudo iwlist scan
ESSID:"csr-zic-outside"
Bit Rates:11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000001ff33db6cb
Extra: Last beacon: 61436ms ago
IE: Unknown: 000F6373722D7A69632D6F757473696465
IE: Unknown: 01079698243048606C
IE: Unknown: 030106
IE: Unknown: 0706434E20010D14
IE: Unknown: 0B0502001F8D5B
IE: Unknown: 2A0100
IE: Unknown: 2D1A2C181BFFFF000000000000000000000000000000000000000000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : 802.1x
IE: Unknown: 3D1606000700000000000000000000000000000000000000
IE: Unknown: 851E07008F000F00FF035900572D48516D632D313134322D3630320002000036
IE: Unknown: 9606004096000E00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : 802.1x
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD06004096010104
IE: Unknown: DD050040960305
IE: Unknown: DD050040960B09
IE: Unknown: DD050040961401

sudo lshw -class network
*-network
description: Ethernet interface
product: 82579LM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 04
serial: 3c:97:0e:35:44:88
width: 32 bits
clock: 33MHz
capabilities: pm msi cap_list ethernet physical
configuration: broadcast=yes driver=e1000e latency=0 multicast=yes
resources: irq:20 memory:f2500000-f251ffff memory:f253b000-f253bfff ioport:6080(size=32)
*-network
description: Wireless interface
product: RTL8188CE 802.11b/g/n WiFi Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 01
serial: 20:68:9d:1b:29:6c
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192ce driverversion=3.13.0-26-generic firmware=N/A ip=10.100.116.16 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 ioport:4000(size=256) memory:f1c00000-f1c03fff

[bg3udb]

相同的问题，我都更改了DNS了还是一样

[bg3udb]

我也是这样的问题。。求楼主解决了么？

[poloshiao]

product: RTL8188CE 802.11b/g/n WiFi Adapter
configuration: broadcast=yes driver=rtl8192ce driverversion=3.13.0-26-generic firmware=N/A

1. 無限網卡 RTL8188CE
目前作用中驅動 rtl8192ce
http://wireless.kernel.org/en/users/Drivers/rtl819x
rtlwifi
rtl8192ce is a PCI-E driver for RTL8192CE/RTL8188CE devices.
2. 目前沒有作用中 firmware
3. 參閱這個 Bug Report 尚未確認是 Bug
https://bugs.launchpad.net/ubuntu/+sour ... ug/1268833
Wireless not working in 13.10 and 14.04 for rtl8192ce (RTL8188CE)

[harrison676]

我用了2年的ubuntu 12.04也遇到了，最近出现的，不知道是啥原因，有大侠知道吗？

[poloshiao]

我用了2年的ubuntu 12.04也遇到了

相同的網卡型號及驅動嗎

[Billyx]

我这也是，14.04下无线哪怕是满格也掉，我还以为是路由问题，结果换了3个路由都是一样的表现，机器是hp-14-d101tx
sudo ifconfig -a
eth0 Link encap:以太网 硬件地址 c4:34:6b:4d:a7:ad
UP BROADCAST MULTICAST MTU:1500 跃点数:1
接收数据包:1466 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:1996 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:1000
接收字节:1035749 (1.0 MB) 发送字节:269186 (269.1 KB)

lo Link encap:本地环回
inet 地址:127.0.0.1 掩码:255.0.0.0
inet6 地址: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 跃点数:1
接收数据包:2267 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:2267 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:0
接收字节:209712 (209.7 KB) 发送字节:209712 (209.7 KB)

wlan0 Link encap:以太网 硬件地址 90:48:9a:7e:5e:c4
inet 地址:192.168.1.185 广播:192.168.1.255 掩码:255.255.255.0
inet6 地址: fe80::9248:9aff:fe7e:5ec4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1
接收数据包:12829 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:17761 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:1000
接收字节:9667830 (9.6 MB) 发送字节:2652108 (2.6 MB)
sudo cat /etc/network/interfaces
wlan0 Scan completed :
Cell 01 - Address: D0:C7:C0:8C:44:34
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=66/70 Signal level=-44 dBm
Encryption key:on
ESSID:"XYCWB"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000001be0e27fa9f
Extra: Last beacon: 8ms ago
IE: Unknown: 00055859435742
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B070200000000000000000000000000000000000000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD05000AEB0100
IE: Unknown: DD8E0050F204104A0001101044000102103B0001031047001000000000000010000000D0C7C08C44341021000754502D4C494E4B10230009544C2D57523834324E10240003342E3010420007312E312E312E331054000800060050F204000110110018576972656C657373204E20526F757465722057523834324E100800022288103C0001011049000600372A000120
sudo lshw -class network
description: Wireless interface
product: RTL8188EE Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:0f:00.0
logical name: wlan0
version: 01
serial: 90:48:9a:7e:5e:c4
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8188ee driverversion=3.13.0-39-generic firmware=N/A ip=192.168.1.185 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 ioport:3000(size=256) memory:b7500000-b7503fff

[Billyx]

我这也是，14.04下无线哪怕是满格也掉，我还以为是路由问题，结果换了3个路由都是一样的表现，机器是hp-14-d101tx
sudo ifconfig -a
eth0 Link encap:以太网 硬件地址 c4:34:6b:4d:a7:ad
UP BROADCAST MULTICAST MTU:1500 跃点数:1
接收数据包:1466 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:1996 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:1000
接收字节:1035749 (1.0 MB) 发送字节:269186 (269.1 KB)

lo Link encap:本地环回
inet 地址:127.0.0.1 掩码:255.0.0.0
inet6 地址: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 跃点数:1
接收数据包:2267 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:2267 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:0
接收字节:209712 (209.7 KB) 发送字节:209712 (209.7 KB)

wlan0 Link encap:以太网 硬件地址 90:48:9a:7e:5e:c4
inet 地址:192.168.1.185 广播:192.168.1.255 掩码:255.255.255.0
inet6 地址: fe80::9248:9aff:fe7e:5ec4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1
接收数据包:12829 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:17761 错误:0 丢弃:0 过载:0 载波:0
碰撞:0 发送队列长度:1000
接收字节:9667830 (9.6 MB) 发送字节:2652108 (2.6 MB)
sudo cat /etc/network/interfaces
wlan0 Scan completed :
Cell 01 - Address: D0:C7:C0:8C:44:34
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=66/70 Signal level=-44 dBm
Encryption key:on
ESSID:"XYCWB"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000001be0e27fa9f
Extra: Last beacon: 8ms ago
IE: Unknown: 00055859435742
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B070200000000000000000000000000000000000000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD05000AEB0100
IE: Unknown: DD8E0050F204104A0001101044000102103B0001031047001000000000000010000000D0C7C08C44341021000754502D4C494E4B10230009544C2D57523834324E10240003342E3010420007312E312E312E331054000800060050F204000110110018576972656C657373204E20526F757465722057523834324E100800022288103C0001011049000600372A000120
sudo lshw -class network
description: Wireless interface
product: RTL8188EE Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:0f:00.0
logical name: wlan0
version: 01
serial: 90:48:9a:7e:5e:c4
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8188ee driverversion=3.13.0-39-generic firmware=N/A ip=192.168.1.185 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 ioport:3000(size=256) memory:b7500000-b7503fff

[Tulip.Z.XJ]

应该是驱动的问题

[poloshiao]

sudo ifconfig -a
eth0 Link encap:以太网 硬件地址 c4:34:6b:4d:a7:ad
UP BROADCAST MULTICAST MTU:1500 跃点数:1

1. 如果你長期不用有線 從 bios 把 有線網卡 關閉
以免影響無線網卡連線

sudo cat /etc/network/interfaces
wlan0 Scan completed :
Cell 01 - Address: D0:C7:C0:8C:44:34
... 以下略

2. 這些結果 應該不是
sudo cat /etc/network/interfaces
的結果

sudo lshw -class network
product: RTL8188EE Wireless Network Adapter
configuration: broadcast=yes driver=rtl8188ee driverversion=3.13.0-39-generic firmware=N/A ip=192.168.1.185 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn

3. 驅動 rtl8188ee
3-1. http://wireless.kernel.org/en/users/Drivers
Existing Linux Wireless drivers
以 rtl8188ee 搜尋
打 ? 號的表示 這些模式 可能還不支援
3-2. https://github.com/lwfinger/rtlwifi_new ... /rtl8188ee
Fix all drivers to build correctly on Ubuntu 3.13
3-3. 把 rtl8188ee 輸入本論壇上方 問答集
看看有沒有其它貼文可以供你參考