can't download from ubuntu software centre and can't get update from terminal

here from my terminal >>
shaiful@shaiful-MS-7267:~$ sudo apt-get update
[sudo] password for shaiful:
Ign http://security.ubuntu.com precise-security InRelease
Ign http://extras.ubuntu.com precise InRelease
Get:1 http://security.ubuntu.com precise-security Release.gpg [198 B]
Hit http://extras.ubuntu.com precise Release.gpg
Get:2 http://security.ubuntu.com precise-security Release [49.6 kB]
Hit http://extras.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise/main Sources
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Get:3 http://security.ubuntu.com precise-security/main Sources [1,550 B]
Get:4 http://security.ubuntu.com precise-security/restricted Sources [14 B]
Get:5 http://security.ubuntu.com precise-security/universe Sources [2,143 B]
Get:6 http://security.ubuntu.com precise-security/multiverse Sources [14 B]
Get:7 http://security.ubuntu.com precise-security/main i386 Packages [11.9 kB]
Get:8 http://security.ubuntu.com precise-security/restricted i386 Packages [14 B]
Get:9 http://security.ubuntu.com precise-security/universe i386 Packages [2,571 B]
Get:10 http://security.ubuntu.com precise-security/multiverse i386 Packages [14 B]
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://security.ubuntu.com precise-security/universe Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Ign http://my.archive.ubuntu.com precise InRelease
Ign http://my.archive.ubuntu.com precise-updates InRelease
Ign http://my.archive.ubuntu.com precise-backports InRelease
Err http://my.archive.ubuntu.com precise Release.gpg
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates Release.gpg
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports Release.gpg
  Unable to connect to my.archive.ubuntu.com:http:
Ign http://my.archive.ubuntu.com precise Release
Ign http://my.archive.ubuntu.com precise-updates Release
Ign http://my.archive.ubuntu.com precise-backports Release
Ign http://my.archive.ubuntu.com precise/main Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise/restricted Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise/universe Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise/multiverse Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise/main i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise/restricted i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise/universe i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise/multiverse i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise/main TranslationIndex
Ign http://my.archive.ubuntu.com precise/multiverse TranslationIndex
Ign http://my.archive.ubuntu.com precise/restricted TranslationIndex
Ign http://my.archive.ubuntu.com precise/universe TranslationIndex
Ign http://my.archive.ubuntu.com precise-updates/main Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/restricted Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/universe Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/multiverse Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/main i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/restricted i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/universe i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/multiverse i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-updates/main TranslationIndex
Ign http://my.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Ign http://my.archive.ubuntu.com precise-updates/restricted TranslationIndex
Ign http://my.archive.ubuntu.com precise-updates/universe TranslationIndex
Ign http://my.archive.ubuntu.com precise-backports/main Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/restricted Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/universe Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/multiverse Sources/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/main i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/restricted i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/universe i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/multiverse i386 Packages/DiffIndex
Ign http://my.archive.ubuntu.com precise-backports/main TranslationIndex
Ign http://my.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Ign http://my.archive.ubuntu.com precise-backports/restricted TranslationIndex
Ign http://my.archive.ubuntu.com precise-backports/universe TranslationIndex
Err http://my.archive.ubuntu.com precise/main Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/restricted Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/universe Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/multiverse Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/main i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/restricted i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/universe i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/multiverse i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/main Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/main Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/multiverse Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/multiverse Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/restricted Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/restricted Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/universe Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise/universe Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/main Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/restricted Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/universe Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/multiverse Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/main i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/restricted i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/universe i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/multiverse i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/main Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/main Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/multiverse Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/multiverse Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/restricted Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/restricted Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/universe Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-updates/universe Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/main Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/restricted Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/universe Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/multiverse Sources
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/main i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/restricted i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/universe i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/multiverse i386 Packages
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/main Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/main Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/multiverse Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/multiverse Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/restricted Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/restricted Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/universe Translation-en_US
  Unable to connect to my.archive.ubuntu.com:http:
Err http://my.archive.ubuntu.com precise-backports/universe Translation-en
  Unable to connect to my.archive.ubuntu.com:http:
Fetched 68.0 kB in 1min 3s (1,076 B/s)
W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/Release.gpg Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/Release.gpg Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/main/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/restricted/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/universe/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/multiverse/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/main/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/restricted/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/universe/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/multiverse/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/multiverse/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/multiverse/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/restricted/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/restricted/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/universe/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise/universe/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/main/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/main/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/main/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/main/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/main/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/source/Sources Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/main/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/binary-i386/Packages Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/main/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/main/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/i18n/Translation-en_US Unable to connect to my.archive.ubuntu.com:http:

W: Failed to fetch http://my.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/i18n/Translation-en Unable to connect to my.archive.ubuntu.com:http:

E: Some index files failed to download. They have been ignored, or old ones used instead.