If you have a router between you and your modem then goto Start > Run... (in Windows XP) type "cmd". Now, in command prompt window you need type and execute follow commands:
- ipconfig /release
- ipconfig /renew
How-to's
How to repair ISO file
I think that any of you have experienced the following situation at least once in your life. You download the DVD image of a Linux distribution package or some rare game (it's not that I'm not for piracy, but things happen) with some download manager like FlashGet or Wget and the image does not work - the checksum does not match.
Remember your feelings? Even if you have a good bandwidth, it will take a lot of time to download the ISO image again. But fortunately there is a way out. All you have to do is turn to torrent clients, for instance, BitTorrent or uTorrent.