APT issue with ch.archive.ubuntu.com

gistfile1.txt

$ sudo apt-get update
Ign http://ch.archive.ubuntu.com trusty InRelease
Ign http://ch.archive.ubuntu.com trusty-updates InRelease
Hit http://ch.archive.ubuntu.com trusty Release.gpg
Hit http://ch.archive.ubuntu.com trusty-updates Release.gpg
Hit http://ch.archive.ubuntu.com trusty Release
Hit http://ch.archive.ubuntu.com trusty-updates Release
Hit http://ch.archive.ubuntu.com trusty/main Sources
Hit http://ch.archive.ubuntu.com trusty/universe Sources
Hit http://ch.archive.ubuntu.com trusty/main amd64 Packages
Hit http://ch.archive.ubuntu.com trusty/universe amd64 Packages
Hit http://ch.archive.ubuntu.com trusty/main Translation-en
Hit http://ch.archive.ubuntu.com trusty/universe Translation-en
Hit http://ch.archive.ubuntu.com trusty-updates/main Sources
Hit http://ch.archive.ubuntu.com trusty-updates/universe Sources
Hit http://ch.archive.ubuntu.com trusty-updates/main amd64 Packages
Hit http://ch.archive.ubuntu.com trusty-updates/universe amd64 Packages
Ign http://security.ubuntu.com trusty-security InRelease
Ign http://apt.newrelic.com newrelic InRelease
Get:1 http://ch.archive.ubuntu.com trusty-updates/main Translation-en [249 kB]
Get:2 http://ch.archive.ubuntu.com trusty-updates/universe Translation-en [146 kB]
Hit http://security.ubuntu.com trusty-security Release.gpg
Ign http://ch.archive.ubuntu.com trusty/main Translation-en_US
Ign http://ch.archive.ubuntu.com trusty/universe Translation-en_US
Hit http://apt.newrelic.com newrelic Release.gpg
Hit http://security.ubuntu.com trusty-security Release
Hit http://apt.newrelic.com newrelic Release
Hit http://security.ubuntu.com trusty-security/main Sources
Hit http://apt.newrelic.com newrelic/non-free amd64 Packages
Hit http://security.ubuntu.com trusty-security/universe Sources
Hit http://security.ubuntu.com trusty-security/main amd64 Packages
Hit http://security.ubuntu.com trusty-security/universe amd64 Packages
Hit http://security.ubuntu.com trusty-security/main Translation-en
Hit http://security.ubuntu.com trusty-security/universe Translation-en
Ign http://apt.newrelic.com newrelic/non-free Translation-en_US
Get:3 https://get.docker.io docker InRelease
Ign http://apt.newrelic.com newrelic/non-free Translation-en
Ign https://get.docker.io docker InRelease
Hit https://get.docker.io docker Release.gpg
Hit https://get.docker.io docker Release
Hit https://get.docker.io docker/main amd64 Packages
Get:4 https://get.docker.io docker/main Translation-en_US
Ign https://get.docker.io docker/main Translation-en_US
Ign https://get.docker.io docker/main Translation-en
Fetched 395 kB in 18s (20.9 kB/s)
W: Failed to fetch http://ch.archive.ubuntu.com/ubuntu/dists/trusty-updates/main/i18n/Translation-en  Hash Sum mismatch

W: Failed to fetch http://ch.archive.ubuntu.com/ubuntu/dists/trusty-updates/universe/i18n/Translation-en  Hash Sum mismatch

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