Ubuntu 14.04中的无线连接不稳定
我最近升级到14.04，我已经意识到在连接到wifi网络一段时间后，我的电脑突然断开连接，我必须禁用，然后再次启用wifi连接。 这对我来说是一个主要问题，特别是在下载文件时。 任何修复？ 我已经尝试过禁用IPv6，因为除了其他修复程序之外，还有一些post建议。 请帮忙，我的电脑运行64位。
以下是运行脚本的结果：
########## wireless info START ########## ##### release ##### Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty ##### kernel ##### Linux Bilal-Satellite-C655D 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ##### lspci ##### 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01) Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:8181] Kernel driver in use: rtl8192ce 06:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8152 v1.1 Fast Ethernet [1969:2060] (rev c1) Subsystem: Toshiba America Info Systems Device [1179:ff1e] Kernel driver in use: atl1c ##### lsusb ##### Bus 003 Device 002: ID 10f1:1a34 Importek Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub ##### PCMCIA Card Info ##### ##### rfkill ##### 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no ##### lsmod ##### rtl8192ce 53550 0 rtl_pci 26690 1 rtl8192ce rtlwifi 63475 2 rtl_pci,rtl8192ce rtl8192c_common 53172 1 rtl8192ce mac80211 630653 3 rtl_pci,rtlwifi,rtl8192ce cfg80211 484040 2 mac80211,rtlwifi ##### iw reg get ##### country 00: (2402 - 2472 @ 40), (3, 20) (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS ##### interfaces ##### # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback ##### iwconfig ##### wlan0 IEEE 802.11bgn ESSID:"BD HOME" Mode:Managed Frequency:2.462 GHz Access Point: Bit Rate=18 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=48/70 Signal level=-62 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:81 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 0 0 0 wlan0 192.168.1.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0 ##### resolv.conf ##### nameserver 127.0.1.1 ##### nm-tool ##### NetworkManager Tool State: connected (global) - Device: eth0 ----------------------------------------------------------------- Type: Wired Driver: atl1c State: unavailable Default: no HW Address: Capabilities: Carrier Detect: yes Wired Properties Carrier: off - Device: wlan0 [BD HOME] ---------------------------------------------------- Type: 802.11 WiFi Driver: rtl8192ce State: connected Default: yes HW Address: Capabilities: Speed: 18 Mb/s Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points (* = current AP) BlueSky: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 54 WPA2 Name FA9911.: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 40 WPA WPA2 moaaz: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 34 WPA fadi: Infra, , Freq 2437 MHz, Rate 54 Mb/s, Strength 34 WPA MikroTik-A60863: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2 free set up 186kb 15$ 70.926915: Infra, , Freq 2462 MHz, Rate 11 Mb/s, Strength 27 fre set 512kb 25$ 70.926915: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 27 for internet cafe 33$ 70.926915: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 40 fre set 512/512 25$ 71/566484: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37 fre set 2mb/1.5m 45$ 71/566484: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37 phone 10$ unlimited 70.926915: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37 fre set 384/384 20$ 71/566484: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 34 network cafe 44$ 71/566484: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 30 new for dealers acc 8$ 70.926915: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37 fre set 384kb 20$ 70.926915: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37 *BD HOME: Infra, , Freq 2462 MHz, Rate 54 Mb/s, Strength 56 WPA WPA2 fre set 1m 33$ 70.926915: Infra, , Freq 2412 MHz, Rate 54 Mb/s, Strength 37 IPv4 Settings: Address: 192.168.1.2 Prefix: 24 (255.255.255.0) Gateway: 192.168.1.1 DNS: 192.168.1.1 ##### NetworkManager.state ##### [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true ##### NetworkManager.conf ##### [main] plugins=ifupdown,keyfile,ofono dns=dnsmasq [ifupdown] managed=false ##### iwlist ##### wlan0 Scan completed : Cell 01 - Address: Channel:11 Frequency:2.462 GHz (Channel 11) Quality=46/70 Signal level=-64 dBm Encryption key:on ESSID:"BD HOME" 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=000000054e91bcb4 Extra: Last beacon: 64ms ago IE: Unknown: 000842204420484F4D45 IE: Unknown: 010882848B962430486C IE: Unknown: 03010B IE: Unknown: 2A0100 IE: Unknown: 2F0100 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK IE: Unknown: 32040C121860 IE: Unknown: DD090010180204F0000000 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK Cell 02 - Address: Channel:1 Frequency:2.412 GHz (Channel 1) Quality=32/70 Signal level=-78 dBm Encryption key:off ESSID:"new for dealers acc 8$ 70.926915" 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=000001674f6459ac Extra: Last beacon: 4264ms ago IE: Unknown: 00206E657720666F72206465616C657273206163632038242037302E393236393135 IE: Unknown: 010882848B960C121824 IE: Unknown: 030101 IE: Unknown: 050400010000 IE: Unknown: 2A0100 IE: Unknown: 32043048606C IE: Unknown: DD2A000C42000000011E00000000006614030000303030323646363941423533000000000000000005026C09 Cell 03 - Address: Channel:1 Frequency:2.412 GHz (Channel 1) Quality=32/70 Signal level=-78 dBm Encryption key:off ESSID:"fre set 384kb 20$ 70.926915" 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=000001674f645f12 Extra: Last beacon: 4264ms ago IE: Unknown: 001B66726520736574203338346B62203230242037302E393236393135 IE: Unknown: 010882848B960C121824 IE: Unknown: 030101 IE: Unknown: 050400010000 IE: Unknown: 2A0100 IE: Unknown: 32043048606C IE: Unknown: DD2A000C42000000011E00000000006614030000303030323646363941423533000000000000000005026C09 Cell 04 - Address: Channel:1 Frequency:2.412 GHz (Channel 1) Quality=32/70 Signal level=-78 dBm Encryption key:off ESSID:"fre set 2.5mb 45$ 70.926915" 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=000001674f64644e Extra: Last beacon: 4260ms ago IE: Unknown: 001B6672652073657420322E356D62203435242037302E393236393135 IE: Unknown: 010882848B960C121824 IE: Unknown: 030101 IE: Unknown: 050400010000 IE: Unknown: 2A0100 IE: Unknown: 32043048606C IE: Unknown: DD2A000C42000000011E00000000006614030000303030323646363941423533000000000000000005026C09 Cell 05 - Address: Channel:11 Frequency:2.462 GHz (Channel 11) Quality=38/70 Signal level=-72 dBm Encryption key:on ESSID:"BlueSky" 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=0000000323d91340 Extra: Last beacon: 64ms ago IE: Unknown: 0007426C7565536B79 IE: Unknown: 010882848B962430486C IE: Unknown: 03010B IE: Unknown: 2A0100 IE: Unknown: 2F0100 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 32040C121860 IE: Unknown: DD090010180201F0000000 Cell 06 - Address: Channel:6 Frequency:2.437 GHz (Channel 6) Quality=30/70 Signal level=-80 dBm Encryption key:on ESSID:"Name FA9911." 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=0000000000000000 Extra: Last beacon: 64ms ago IE: Unknown: 000C4E616D65204641393931312E IE: Unknown: 010882848B962430486C IE: Unknown: 030106 IE: Unknown: 2A0100 IE: Unknown: 2F0100 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 32040C121860 IE: Unknown: 2D1A1C181BFFFF000000000000000000000000000000000000000000 IE: Unknown: 3D1606081500000000000000000000000000000000000000 IE: Unknown: DD090010180202000C0000 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1) : PSK IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 Cell 07 - Address: Channel:6 Frequency:2.437 GHz (Channel 6) Quality=30/70 Signal level=-80 dBm Encryption key:on ESSID:"fadi" 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=00000006b08c8181 Extra: Last beacon: 2544ms ago IE: Unknown: 000466616469 IE: Unknown: 010882848B960C121824 IE: Unknown: 030106 IE: Unknown: 050400010000 IE: Unknown: 2A0100 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1) : PSK IE: Unknown: 32043048606C IE: Unknown: DD0900037F01010060FF7F IE: Unknown: DD050050F20500 IE: Unknown: DD0E0050F204104A0001101044000102 ##### iwlist channel ##### wlan0 13 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 Channel 12 : 2.467 GHz Channel 13 : 2.472 GHz Current Frequency:2.462 GHz (Channel 11) ##### modinfo ##### filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko firmware: rtlwifi/rtl8192cfwU_B.bin firmware: rtlwifi/rtl8192cfwU.bin firmware: rtlwifi/rtl8192cfw.bin description: Realtek 8192C/8188C 802.11n PCI wireless license: GPL author: Larry Finger author: Realtek WlanFAE author: lizhaoming srcversion: EF063698748457BBEDB4633 alias: pci:v000010ECd00008176sv*sd*bc*sc*i* alias: pci:v000010ECd00008177sv*sd*bc*sc*i* alias: pci:v000010ECd00008178sv*sd*bc*sc*i* alias: pci:v000010ECd00008191sv*sd*bc*sc*i* depends: rtlwifi,rtl_pci,rtl8192c-common,mac80211 intree: Y vermagic: 3.13.0-32-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: :65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7 sig_hashalgo: sha512 parm: swenc:Set to 1 for software crypto (default 0) (bool) parm: ips:Set to 0 to not use link power save (default 1) (bool) parm: swlps:Set to 1 to use SW control power save (default 0) (bool) parm: fwlps:Set to 1 to use FW control power save (default 1) (bool) parm: debug:Set debug level (0-5) (default 0) (int) filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko description: PCI basic driver for rtlwifi license: GPL author: Larry Finger author: Realtek WlanFAE author: lizhaoming srcversion: D5E4890DC428FA5A1BF92DF depends: mac80211,rtlwifi intree: Y vermagic: 3.13.0-32-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: :65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7 sig_hashalgo: sha512 filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko description: Realtek 802.11n PCI wireless core license: GPL author: Larry Finger author: Realtek WlanFAE author: lizhaoming srcversion: E1F4663325225EE8DBA54CA depends: mac80211,cfg80211 intree: Y vermagic: 3.13.0-32-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: :65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7 sig_hashalgo: sha512 filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko description: Realtek 8192C/8188C 802.11n PCI wireless license: GPL author: Larry Finger author: Ziv Huang author: Georgia author: Realtek WlanFAE author: lizhaoming srcversion: 32F826C623BC49F764F7974 depends: intree: Y vermagic: 3.13.0-32-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: :65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7 sig_hashalgo: sha512 ##### modules ##### loop lp rtc ##### blacklist ##### [/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/fbdev-blacklist.conf] blacklist arkfb blacklist aty128fb blacklist atyfb blacklist radeonfb blacklist cirrusfb blacklist cyber2000fb blacklist gx1fb blacklist gxfb blacklist kyrofb blacklist matroxfb_base blacklist mb862xxfb blacklist neofb blacklist nvidiafb blacklist pm2fb blacklist pm3fb blacklist s3fb blacklist savagefb blacklist sisfb blacklist tdfxfb blacklist tridentfb blacklist viafb blacklist vt8623fb ##### udev rules ##### # PCI device 0x1969:/sys/devices/pci0000:00/0000:00:15.1/0000:06:00.0 (atl1c) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" # PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:15.0/0000:02:00.0 (rtl8192ce) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0" ##### dmesg ##### [ 3.247310] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x250f01) [ 18.646342] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin [ 18.730826] ieee80211 phy0: Selected rate control algorithm 'rtl_rc' [ 18.731483] rtlwifi: wireless switch is on [ 22.877235] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 22.879133] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 25.091042] wlan0: authenticate with [ 25.114153] wlan0: send auth to (try 1/3) [ 25.116811] wlan0: authenticated [ 25.117317] rtl8192ce 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 25.117325] rtl8192ce 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 25.130018] wlan0: associate with (try 1/3) [ 25.135637] wlan0: RX AssocResp from (capab=0x411 status=0 aid=5) [ 25.135898] wlan0: associated [ 25.135974] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 25.357409] wlan0: deauthenticating from by local choice (reason=2) [ 25.382134] wlan0: authenticate with [ 25.382338] wlan0: send auth to (try 1/3) [ 25.384936] wlan0: authenticated [ 25.385261] rtl8192ce 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 25.385269] rtl8192ce 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 25.385434] wlan0: associate with (try 1/3) [ 25.392661] wlan0: RX AssocResp from (capab=0x411 status=0 aid=5) [ 25.392859] wlan0: associated [ 1782.666156] wlan0: deauthenticated from (Reason: 7) [ 1783.946838] wlan0: authenticate with [ 1783.947159] wlan0: send auth to (try 1/3) [ 1783.955463] wlan0: authenticated [ 1783.955883] rtl8192ce 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 1783.955890] rtl8192ce 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 1783.959855] wlan0: associate with (try 1/3) [ 1783.962619] wlan0: RX AssocResp from (capab=0x411 status=0 aid=5) [ 1783.962863] wlan0: associated ########## wireless info END ############ 这个驱动程序存在问题，但我们可以采取一些措施来帮助它更好地工作。
首先在您的路由器中将802.11bgn更改为802.11bg 。
第二个将wpa / wpa2加密更改为仅wpa2（CCMP）（AES）而不是（TKIP），如果您有该选项，它将最有效。
第三步将路由器中的无线信道设置为1或11，然后保存路由器配置并重新启动它。
第四步进入屏幕右上角的网络管理器，然后单击编辑连接>无线选项卡并将IPV6设置为忽略。
五，打开终端CTRL + ALT + _T然后一次复制并粘贴以下代码一行，以保证准确性：
echo "options rtl8192ce swenc=1 ips=0" | sudo tee /etc/modprobe.d/rtl8192ce.conf sudo modprobe -rfv rtl8192ce sudo modprobe -v rtl8192ce