Re: [問題] Ubuntu 14.04 WiFi 無法使用(補充資訊)

看板Linux作者fishlinghu (令狐瑜)時間9年前 (2014/10/31 03:26)推噓3(3推 0噓 5→)

留言8則, 6人參與討論串1/1

※ 引述《fishlinghu (令狐瑜)》之銘言： : 先跟各位說聲抱歉 : 我的問題可能有點不明確 : 因為我完全不記得我有修改過任何網路設定 : 可是最近幾天筆電的WiFi就突然不能使用了 : 其實都有顯示有連線而且訊號不弱 : 可是網頁就是開不起來 : 我用兩種指令檢查 : nm-tool還有ifconfig : 看起來都滿正常的 : nm-tool也顯示說status是connected : 唯一一個疑問是IPv4 Address是顯示內網域的Address沒錯嗎? : 我看他寫10.XX.XX.XX : 然後剛剛有一個奇怪的現象 : 就是我把那個WiFi刪掉 : 讓筆電重新抓重新輸密碼 : 就突然可以使用大概30秒 : 之後又掛掉了 : 再說明一下這個WiFi : 他是學校的WiFi 相關加密協定有WPA2, AES, PEAP, MSCHAPv2 : 連之前都要輸帳密才可以連的那種 : 不知道網友能否提供一些檢查的方法呢?? : 或是你覺得可能是哪裡出了問題 : 非常感謝各位的幫忙!!! 這幾天又摸了一陣子還是找不出原因所以我弄了一些詳細訊息希望有人可以看出端倪QQ ==============這是resolv.conf裡面的資訊============== 8.8.8.8 和 8.8.4.4是我自己後來從別的地方加上去的DNS server # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 8.8.8.8 nameserver 8.8.4.4 nameserver 127.0.1.1 search soton.ac.uk =============ifconfig============ wlan0 Link encap:Ethernet HWaddr 60:6c:66:b9:f5:69 inet addr:10.14.45.205 Bcast:10.14.45.255 Mask:255.255.255.0 inet6 addr: fe80::626c:66ff:feb9:f569/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1597 errors:0 dropped:0 overruns:0 frame:0 TX packets:3258 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1218326 (1.2 MB) TX bytes:436485 (436.4 KB) =============iwconfig============= wlan0 IEEE 802.11bgn ESSID:"eduroam" Mode:Managed Frequency:2.437 GHz Access Point: 70:10:5C:A1:F9:F0 Bit Rate=78 Mb/s Tx-Power=16 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=57/70 Signal level=-53 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:50 Missed beacon:0 =============route -n================== Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.14.45.254 0.0.0.0 UG 0 0 0 wlan0 10.14.45.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0 ==================nm-tool======================= NetworkManager Tool State: connected (global) - Device: wlan0 [eduroam] ----------------------------------------------------- Type: 802.11 WiFi Driver: iwlwifi State: connected Default: yes HW Address: 60:6C:66:B9:F5:69 Capabilities: Speed: 65 Mb/s Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points (* = current AP) eduroam: Infra, 70:10:5C:A1:E6:20, Freq 2412 MHz, Rate 54 Mb/s, Strength 65 WPA WPA2 Enterprise eduroam: Infra, 08:CC:68:B8:3C:80, Freq 2437 MHz, Rate 54 Mb/s, Strength 52 WPA WPA2 Enterprise DIRECT-taM2020 Series: Infra, 32:CD:A7:2C:9C:C9, Freq 2412 MHz, Rate 54 Mb/s, Strength 32 WPA2 BTHub3-CGRK: Infra, 00:81:D8:69:9B:C2, Freq 2462 MHz, Rate 54 Mb/s, Strength 29 WPA WPA2 BTWifi-X: Infra, 22:81:D8:69:9B:C2, Freq 2462 MHz, Rate 54 Mb/s, Strength 27 WPA WPA2 Enterprise RIA IS DOPEY: Infra, 64:70:02:43:1B:4A, Freq 2437 MHz, Rate 54 Mb/s, Strength 24 WPA2 BTWifi-with-FON: Infra, 02:81:D8:69:9B:C2, Freq 2462 MHz, Rate 54 Mb/s, Strength 32 eduroam: Infra, 08:CC:68:B8:39:50, Freq 2462 MHz, Rate 54 Mb/s, Strength 67 WPA WPA2 Enterprise eduroam: Infra, 70:10:5C:A1:D8:80, Freq 2437 MHz, Rate 54 Mb/s, Strength 44 WPA WPA2 Enterprise eduroam: Infra, 08:CC:68:B8:16:B0, Freq 2462 MHz, Rate 54 Mb/s, Strength 42 WPA WPA2 Enterprise NUMBER9: Infra, 00:1A:70:9A:CE:2E, Freq 2462 MHz, Rate 54 Mb/s, Strength 20 WPA *eduroam: Infra, 70:10:5C:A1:F9:F0, Freq 2437 MHz, Rate 54 Mb/s, Strength 67 WPA WPA2 Enterprise eduroam: Infra, 08:CC:68:B8:16:90, Freq 2412 MHz, Rate 54 Mb/s, Strength 35 WPA WPA2 Enterprise IPv4 Settings: Address: 10.14.45.205 Prefix: 24 (255.255.255.0) Gateway: 10.14.45.254 DNS: 152.78.255.72 DNS: 152.78.255.71 DNS: 8.8.8.8 DNS: 8.8.4.4 - Device: eth0 ----------------------------------------------------------------- Type: Wired Driver: r8169 State: unavailable Default: no HW Address: 94:DE:80:67:2F:6B Capabilities: Carrier Detect: yes Wired Properties Carrier: off ===================以下是我的一些測試結果===================== ping 127.0.1.1: OK 一切正常 ping 10.14.45.254:(gateway) 無反應我大概等一分鐘連ICMP錯誤訊息都沒回 ping 8.8.8.8: 無反應我大概等一分鐘連ICMP錯誤訊息都沒回 ==================奇怪狀況========================= 一、電腦剛開機的時候可以連網頁可是就像我第一次說的過沒幾秒就又掛了二、我剛剛拔掉網路線想測試無線網路的時候點選我要連的無線網路就出現了以下錯誤訊息 (1) Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/4' failed in libnm-glib. 所以我只有剛開機沒插網路線的情況下輸入網路密碼後才可以連然後連上之後就跟我第1點說明的情況一樣總之就是明明顯示有連上可是其實不work 以上是我目前整理出來的資料希望大家可以幫個忙哪怕你也不確定都麻煩告訴我你覺得可能的問題我再去查非常感謝大家幫忙QQ -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 152.78.252.37 ※ 文章網址: http://www.ptt.cc/bbs/Linux/M.1414697190.A.B18.html

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