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Possible Duplicate:
Can’t use ping in Ubuntu

I'm not sure this question is relevant in this forum, but I really need your helps. I'm using Ubuntu 9.04, and when I do a ping to any ip or host, what I got were always 100% packet loss. This is terrible, since I cannot do many things in my textbook. Please help me to fix this problem. Thank you very much

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    What happens if you ping yourself?
    – gbarry
    Aug 12, 2009 at 16:29
  • +1 to gbarry Are you sure that you are connected to a network... and if so is it dhcp? did you get an ip address?
    – TimK
    Aug 12, 2009 at 16:42
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    Duplicate of superuser.com/questions/21859/cant-use-ping-in-ubuntu
    – Isxek
    Aug 12, 2009 at 18:18
  • This needs to be deleted, the other question has many of the answers needed.
    – Troggy
    Aug 12, 2009 at 19:42

2 Answers 2

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Have you tried turning off your iptables firewall? It might be...over eager.

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It's possible you have a bad network card and/or a bad patch cable. Was it working before and has now suddenly stopped?