After upgrading Ubuntu to 9.10，ADSL inexplicably stopped working，上网查了不少资料，不少人都同樣問題，而解決方法更是五花八門，最大宗就是以pppoeconf暫時擋著。在嘗試各種解決方案後，最後仍是宣告無解，只得以WagalyTalk當DHCP Server先撐著用。
隔了一度時間，不死心的又去爬了文，這回總算有收穫。這次的問題就出在NetworkManager這套件，且目前已有釋出修正版，因此只需更新一下，问题即可解决。
在「軟體來源」加入"ppa:network-manager/trunk"，reload一下update，把原本的ADSL設定砍掉，再建一個新的，重開機後便可成功完成撥接。
【相關連結】
- NetworkManager daily trunk builds for ubuntu : “Network-manager” team
板主回复：
有沒有訊息？應該有中文或英文訊息？
板主回复：
JJ~
我沒在玩遊戲耶
可能是Flash版本問題吧
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