mint15，保留/home，重装系统后，发现wifi不稳定，具体表现为系统不定时会自动断线，断线后不能搜索到刚才使用的wifi信号（来自其它路由的信号没问题）。单纯注销再登录仍不能显示那个wifi信号，但重新启动系统后一切正常。
重装前wifi很稳定的，开机一整晚PT下载都满速的。可现在只要过一段时间，它就会断线。
我看了电源管理，没有有关网络的设置。
硬件应该没问题的，因为网络故障后，其它wifi信号还是可以搜到的。
重装系统后wifi不稳定。
-
poloshiao
- 论坛版主
- 帖子： 18279
- 注册时间： 2009-08-04 16:33
Re: 重装系统后wifi不稳定。
從終端機
1. sudo ifconfig -a
2. sudo cat /etc/network/interfaces
3. sudo iwlist scan
4. sudo lshw -class network
把結果直接複製貼上來
1. sudo ifconfig -a
2. sudo cat /etc/network/interfaces
3. sudo iwlist scan
4. sudo lshw -class network
把結果直接複製貼上來
-
anway
- 帖子： 403
- 注册时间： 2007-07-22 12:13
Re: 重装系统后wifi不稳定。
anway@anway-F8Tr:~$ sudo ifconfig -a
eth0 Link encap:以太网 硬件地址 00:23:54:8e:6a:b6
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)
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:382 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:382 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:39104 (39.1 KB) 发送字节:39104 (39.1 KB)
wlan0 Link encap:以太网 硬件地址 00:22:43:2c:ea:fa
inet 地址:192.168.1.119 广播:192.168.1.255 掩码:255.255.255.0
inet6 地址: fe80::222:43ff:fe2c:eafa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1
接收数据包:154698 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:101083 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:216561509 (216.5 MB) 发送字节:17343751 (17.3 MB)
anway@anway-F8Tr:~$ sudo cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
anway@anway-F8Tr:~$ sudo iwlist scan
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: A8:15:4D:AF:EC:7E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=37/70 Signal level=-73 dBm
Encryption key:on
ESSID:"waiyike"
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=000000139c8900a0
Extra: Last beacon: 88ms ago
IE: Unknown: 000777616979696B65
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E101EFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601050300000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD4D0050F204104A0001101044000102103B0001031047001031353464616665633765000AEB001601102100001023000010240000104200001054000800060050F204000110110000100800020086
IE: Unknown: DD1E00904C336E101EFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401050300000000000000000000000000000000000000
IE: Unknown: 0706434E20010D14
IE: Unknown: DD0600E04C020160
Cell 02 - Address: C8:3A:35:3D:77:48
Channel:9
Frequency:2.452 GHz (Channel 9)
Quality=26/70 Signal level=-84 dBm
Encryption key:on
ESSID:"Tenda_3D7748"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000c4a08b044
Extra: Last beacon: 88ms ago
IE: Unknown: 000C54656E64615F334437373438
IE: Unknown: 010882840B162430486C
IE: Unknown: 030109
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFE181BFFFF000001000000000000000000000000000000000000
IE: Unknown: 3D16090F0400000000000000000000000000000000000000
IE: Unknown: DD090010180212F02C0000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
anway@anway-F8Tr:~$ sudo lshw -class network
*-network
description: Ethernet interface
product: RTL8111/8168 PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:23:54:8e:6a:b6
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom 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 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:44 ioport:d800(size=256) memory:faeff000-faefffff memory:f7ff0000-f7ffffff memory:faec0000-faedffff
*-network
description: Wireless interface
product: AR242x / AR542x Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlan0
version: 01
serial: 00:22:43:2c:ea:fa
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath5k driverversion=3.8.0-25-generic firmware=N/A ip=192.168.1.119 latency=0 link=yes multicast=yes wireless=IEEE 802.11bg
resources: irq:18 memory:faff0000-faffffff
eth0 Link encap:以太网 硬件地址 00:23:54:8e:6a:b6
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)
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:382 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:382 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:39104 (39.1 KB) 发送字节:39104 (39.1 KB)
wlan0 Link encap:以太网 硬件地址 00:22:43:2c:ea:fa
inet 地址:192.168.1.119 广播:192.168.1.255 掩码:255.255.255.0
inet6 地址: fe80::222:43ff:fe2c:eafa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1
接收数据包:154698 错误:0 丢弃:0 过载:0 帧数:0
发送数据包:101083 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:216561509 (216.5 MB) 发送字节:17343751 (17.3 MB)
anway@anway-F8Tr:~$ sudo cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
anway@anway-F8Tr:~$ sudo iwlist scan
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: A8:15:4D:AF:EC:7E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=37/70 Signal level=-73 dBm
Encryption key:on
ESSID:"waiyike"
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=000000139c8900a0
Extra: Last beacon: 88ms ago
IE: Unknown: 000777616979696B65
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E101EFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601050300000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD4D0050F204104A0001101044000102103B0001031047001031353464616665633765000AEB001601102100001023000010240000104200001054000800060050F204000110110000100800020086
IE: Unknown: DD1E00904C336E101EFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401050300000000000000000000000000000000000000
IE: Unknown: 0706434E20010D14
IE: Unknown: DD0600E04C020160
Cell 02 - Address: C8:3A:35:3D:77:48
Channel:9
Frequency:2.452 GHz (Channel 9)
Quality=26/70 Signal level=-84 dBm
Encryption key:on
ESSID:"Tenda_3D7748"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000c4a08b044
Extra: Last beacon: 88ms ago
IE: Unknown: 000C54656E64615F334437373438
IE: Unknown: 010882840B162430486C
IE: Unknown: 030109
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFE181BFFFF000001000000000000000000000000000000000000
IE: Unknown: 3D16090F0400000000000000000000000000000000000000
IE: Unknown: DD090010180212F02C0000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
anway@anway-F8Tr:~$ sudo lshw -class network
*-network
description: Ethernet interface
product: RTL8111/8168 PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:23:54:8e:6a:b6
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom 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 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:44 ioport:d800(size=256) memory:faeff000-faefffff memory:f7ff0000-f7ffffff memory:faec0000-faedffff
*-network
description: Wireless interface
product: AR242x / AR542x Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlan0
version: 01
serial: 00:22:43:2c:ea:fa
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath5k driverversion=3.8.0-25-generic firmware=N/A ip=192.168.1.119 latency=0 link=yes multicast=yes wireless=IEEE 802.11bg
resources: irq:18 memory:faff0000-faffffff
-
poloshiao
- 论坛版主
- 帖子： 18279
- 注册时间： 2009-08-04 16:33
Re: 重装系统后wifi不稳定。
1. 你的無線硬件/驅動/訊號 沒有發現問題
2. 哪個 ESSID 是你的
ESSID:"waiyike"
ESSID:"Tenda_3D7748"
3. 你能登入你的 wifi ap 或 router 嗎
看看
授權方式
WPA 加密
兩項 是什麼內容
要看看跟你的 NM-Applet 裏的設定是否相符
2. 哪個 ESSID 是你的
ESSID:"waiyike"
ESSID:"Tenda_3D7748"
3. 你能登入你的 wifi ap 或 router 嗎
看看
授權方式
WPA 加密
兩項 是什麼內容
要看看跟你的 NM-Applet 裏的設定是否相符
-
anway
- 帖子： 403
- 注册时间： 2007-07-22 12:13
Re: 重装系统后wifi不稳定。
感谢大·神回复。
两个ESSID都存在类似问题.
我能登录路由，我就是路由的管理员。
重装前后的路由设置没变。
两个ESSID都存在类似问题.
我能登录路由，我就是路由的管理员。
重装前后的路由设置没变。
-
poloshiao
- 论坛版主
- 帖子： 18279
- 注册时间： 2009-08-04 16:33
Re: 重装系统后wifi不稳定。
詳細參閱
1. https://help.ubuntu.com/community/WifiDocs/WPAHowTo
2. http://manpages.ubuntu.com/manpages/pre ... ant.8.html
3. http://manpages.ubuntu.com/manpages/pre ... onf.5.html
記得
NM-Applet 中 WPA 的設定 需要配合 WIFI router 裏面的 WPA 要求
如果你的 wifi 在 NM-Applet 設定是 DHCP 無論動態或靜態
這個指令
http://manpages.ubuntu.com/manpages/luc ... ent.8.html
sudo dhclient wlan0
能夠幫你操控與 WIFI router 的各種溝通
http://askubuntu.com/a/73025/198920
你可以從這個回應或記錄 查出是什麼問題
如果以上都沒問題 還是無法連線成功
重新安裝 network-manager-gnome 套件試試
上網搜尋你安裝的驅動模組 有沒有更好的選擇 有時會意外解決這個問題
1. https://help.ubuntu.com/community/WifiDocs/WPAHowTo
2. http://manpages.ubuntu.com/manpages/pre ... ant.8.html
3. http://manpages.ubuntu.com/manpages/pre ... onf.5.html
記得
NM-Applet 中 WPA 的設定 需要配合 WIFI router 裏面的 WPA 要求
如果你的 wifi 在 NM-Applet 設定是 DHCP 無論動態或靜態
這個指令
http://manpages.ubuntu.com/manpages/luc ... ent.8.html
sudo dhclient wlan0
能夠幫你操控與 WIFI router 的各種溝通
http://askubuntu.com/a/73025/198920
你可以從這個回應或記錄 查出是什麼問題
如果以上都沒問題 還是無法連線成功
重新安裝 network-manager-gnome 套件試試
上網搜尋你安裝的驅動模組 有沒有更好的選擇 有時會意外解決這個問題