Ferramenta de Atualização do Ubuntu 12.10 não reconhece acesso à internet

[Lu_br]

Olá todos!

Estou tendo problemas para atualizar o Ubuntu 12.10. Já procurei se alguém já havia postado sobre isso mas não vi relato de nenhum problema semelhante. Importante dizer que sou usuária iniciante de Linux e tenho aprendido algumas coisas "na raça". Vamos lá:

1) Abro o Software Updater, ele inicia busca para baixar pacotes mas em seguida pede "Verifique sua conexão de internet". Entretanto, meu notebook esta conectado à internet (estou neste momento usando-a).

2) Em seguida, tento atualizar pelo terminal. Digito sudo apt-get update e ele prossegue com:

[sudo] password for luciana:
0% [Connecting to 192.168.19.1 (192.168.19.1)] [Connecting to 192.168.19.1 (192.168.19.1)]

E retorna isso:

Err http://archive.canonical.com quantal Release.gpg                                                                                  
 Could not connect to 192.168.19.1:8080 (192.168.19.1). - connect (110: Connection timed out)
Err http://ftp.ussg.iu.edu quantal Release.gpg                                                                                        
 Could not connect to 192.168.19.1:8080 (192.168.19.1). - connect (110: Connection timed out)
Err http://ftp.ussg.iu.edu quantal-updates Release.gpg                                    
 Unable to connect to 192.168.19.1:8080:
etc...
Err http://ftp.ussg.iu.edu quantal/universe Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal/universe Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/main Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/restricted Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/universe Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/multiverse Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/main i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/restricted i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/universe i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/multiverse i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/main Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/main Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/multiverse Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/multiverse Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/restricted Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/restricted Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/universe Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-updates/universe Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/main Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/restricted Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/universe Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/multiverse Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/main i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/restricted i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/universe i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/multiverse i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/main Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/main Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/multiverse Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/multiverse Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/restricted Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/restricted Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/universe Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-backports/universe Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/main Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/restricted Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/universe Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/multiverse Sources
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/main i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/restricted i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/universe i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/multiverse i386 Packages
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/main Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/main Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/multiverse Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/multiverse Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/restricted Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/restricted Translation-en
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/universe Translation-en_US
 Unable to connect to 192.168.19.1:8080:
Err http://ftp.ussg.iu.edu quantal-security/universe Translation-en
 Unable to connect to 192.168.19.1:8080:
W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/Release.gpg  Could not connect to 192.168.19.1:8080 (192.168.19.1). - connect (110: Connection timed out)

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/Release.gpg  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/Release.gpg  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/Release.gpg  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/quantal/Release.gpg  Could not connect to 192.168.19.1:8080 (192.168.19.1). - connect (110: Connection timed out)

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/quantal/Release.gpg  Could not connect to 192.168.19.1:8080 (192.168.19.1). - connect (110: Connection timed out)

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/quantal/partner/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/quantal/partner/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/quantal/partner/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/main/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/restricted/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/universe/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/multiverse/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/main/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/restricted/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/universe/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/multiverse/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/main/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/main/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/multiverse/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/multiverse/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/restricted/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/restricted/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/universe/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal/universe/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/main/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/restricted/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/universe/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/multiverse/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/main/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/restricted/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/universe/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/multiverse/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/main/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/main/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/multiverse/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/multiverse/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/restricted/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/restricted/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/universe/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-updates/universe/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/main/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/restricted/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/universe/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/multiverse/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/main/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/restricted/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/universe/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/multiverse/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/main/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/main/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/multiverse/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/multiverse/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/restricted/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/restricted/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/universe/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-backports/universe/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/quantal/main/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/quantal/main/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/main/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/restricted/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/universe/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/multiverse/source/Sources  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/main/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/restricted/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/universe/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/multiverse/binary-i386/Packages  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/main/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/main/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/multiverse/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/multiverse/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/restricted/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/restricted/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/universe/i18n/Translation-en_US  Unable to connect to 192.168.19.1:8080:

W: Failed to fetch http://ftp.ussg.iu.edu/linux/ubuntu/dists/quantal-security/universe/i18n/Translation-en  Unable to connect to 192.168.19.1:8080:

E: Some index files failed to download. They have been ignored, or old ones used instead.
luciana@Lu-HP:~$

Aí tento o Software Sources, e em Download from eu seleciono Other e em seguida Select Best Server. Ele prossegue com o Testing Download Servers e retorna No Suitable Download Server Was Found - Please Check You Internet Connection. Só que eu estou na Internet neste exato momento, escrevendo isso pra vocês, mas por alguma razão a ferramenta de atualização do Ubuntu 12.10 não está reconhecendo. E o Thunderbird também consegue acesso à internet e faz a sincronização dos meus emails normalmente, sem erro algum.

Em tempo: meu notebook é um HP 1000 i3

Como posso resolver isso?

Obrigada!

[xluisfernando]

Pela resposta do comando aparentemente o servidor usado para disponibilizar a atualização é estrangeiro e está momentaneamente fora do ar.

A solução seria clicar no botão de configurações do gerenciador de atualizações (em baixo, lado esquerdo) e depois de colocar a senha, na opção "Aplicativos do Ubuntu" (a primeira), marcar "Baixar de" com a opção "Servidor - Brasil".

Feito isso a lista de repositórios será recarregada, com endereços do Brasil

[Arthur Bernardes]

Código Selecionar Expandir

Unable to connect to 192.168.19.1:8080:

Isso é servidor proxy, não?

[Lu_br]

Xluisfernando, eu fiz isso, escolhi o servidor da unesp e deu o mesmo problema, o atualizador de programas diz que eu não tenho acesso à internet (o que não é verdade).

Arthur, eu não sei o que é servidor proxy. Não sei dizer se o tal endereço seria um...

Obrigada, por enquanto.

Lu

[Eliseu Carvalho]

O Ubuntu 12.10 tem diversos bugs relacionados à Internet. Sugiro usar o 12.04 LTS ou o 13.10, fazendo uma instalação limpa.

[Lu_br]

E esses bugs de conexão com a internet não têm solução nenhuma?

[Eliseu Carvalho]

E esses bugs de conexão com a internet não têm solução nenhuma?

Ter, tem, mas é muito mais simples mudar pra uma dessas versões.

[Arthur Bernardes]

Como é a topologia da rede onde se conecta?

[Lu_br]

Arthur, vou tentar responder a sua pergunta: eu uso modem 3G. Ocasionalmente conecto wi-fi.

[xluisfernando]

Xluisfernando, eu fiz isso, escolhi o servidor da unesp e deu o mesmo problema, o atualizador de programas diz que eu não tenho acesso à internet (o que não é verdade).

Arthur, eu não sei o que é servidor proxy. Não sei dizer se o tal endereço seria um...

Obrigada, por enquanto.

Lu

Lu
Na opção de escolha de repositório "Servidor - Brasil", tem a opção outro. Nessa opção, aparece a lista dos espelhos e uma opção de escolher o melhor. Com isso, o sistema faz um teste e verifica quais dos servidores apresenta melhor conexão.

Você chegou a fazer isso ou escolheu o da unesp direto? Aqui, fiz o teste e o sistema me indicou o da usp

Já vi esse tipo de problema acontecer e lembro que a causa era justamente o fato de que o servidor escolhido estava fora do ar, naquele momento.

Se não der certo, passemos a uma solução drástica: substituição manual da lista de repositórios

sudo gedit /etc/apt/sources.list

Apague tudo e substitua por:

#############################################################
################### OFFICIAL UBUNTU REPOS ###################
#############################################################

###### Ubuntu Main Repos
deb http://br.archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ quantal restricted universe multiverse

###### Ubuntu Update Repos
deb http://br.archive.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse
deb http://br.archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse
deb http://br.archive.ubuntu.com/ubuntu/ quantal-proposed main restricted universe multiverse
deb http://br.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ quantal-security restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ quantal-updates restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ quantal-proposed restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ quantal-backports restricted universe multiverse

###### Ubuntu Partner Repo
deb http://archive.canonical.com/ubuntu quantal partner
deb-src http://archive.canonical.com/ubuntu quantal partner

###### Ubuntu Extras Repo
deb http://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main

Salve e feche o arquivo para então executar o apt-get update

[Lu_br]

xluisfernando, eu fui direto para a lista de repositórios e veja o que havia na lista:

# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release i386 (20121017.2)]/ quantal main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://mirror.unesp.br/ubuntu/ quantal main restricted
deb-src http://mirror.unesp.br/ubuntu/ quantal main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://mirror.unesp.br/ubuntu/ quantal-updates main restricted
deb-src http://mirror.unesp.br/ubuntu/ quantal-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://mirror.unesp.br/ubuntu/ quantal universe
deb-src http://mirror.unesp.br/ubuntu/ quantal universe
deb http://mirror.unesp.br/ubuntu/ quantal-updates universe
deb-src http://mirror.unesp.br/ubuntu/ quantal-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://mirror.unesp.br/ubuntu/ quantal multiverse
deb-src http://mirror.unesp.br/ubuntu/ quantal multiverse
deb http://mirror.unesp.br/ubuntu/ quantal-updates multiverse
deb-src http://mirror.unesp.br/ubuntu/ quantal-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://mirror.unesp.br/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://mirror.unesp.br/ubuntu/ quantal-backports main restricted universe multiverse

deb http://mirror.unesp.br/ubuntu/ quantal-security main restricted
deb-src http://mirror.unesp.br/ubuntu/ quantal-security main restricted
deb http://mirror.unesp.br/ubuntu/ quantal-security universe
deb-src http://mirror.unesp.br/ubuntu/ quantal-security universe
deb http://mirror.unesp.br/ubuntu/ quantal-security multiverse
deb-src http://mirror.unesp.br/ubuntu/ quantal-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu quantal partner
deb-src http://archive.canonical.com/ubuntu quantal partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main

Eu comprei o DVD do 12.10 no site da Canonical. Achei muito estranho que a lista de repositórios nao estivesse descrita.
Mas mesmo assim, copiando e colando a nova lista no arquivo não resolveu. Ele continua tentando acessar o IP 192.168.19.1:8080: e continua acusando  o mesmo problema de "falta de acesso à internet".

Obrigada por enquanto.

[Arthur Bernardes]

Eu acho que o Ubuntu 12.10 foi o mais "problemático" do ano, já estamos no 13.10, recomendo que você faça o download, ou mesmo do 12.04 que é LTS!!

[irtigor]

Esse IP é da sua rede interna, que tipo de conexão você têm?

[Creto]

Rapaz, isso é coisa de roteador reseta o bicho.

192.168.19.1:8080

T+

[Lu_br]

Gente, eu uso internet 3G da Oi...