Error during update 

A problem occurred during the update. This is usually some sort of 
network problem, please check your network connection and retry. 

W:Failed to fetch 
http://us.archive.ubuntu.com/ubuntu/dists/xenial/main/i18n/Translation-en_GB 
Hash Sum mismatch 
, W:Failed to fetch 
http://us.archive.ubuntu.com/ubuntu/dists/xenial/multiverse/i18n/Translation-en_GB 
Hash Sum mismatch 
, W:Failed to fetch 
http://us.archive.ubuntu.com/ubuntu/dists/xenial/restricted/i18n/Translation-en_GB 
Hash Sum mismatch 
, W:Failed to fetch 
http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/i18n/Translation-en_GB 
Hash Sum mismatch 
, E:Some index files failed to download. They have been ignored, or 
old ones used instead. 


Restoring original system state

Aborting
Reading package lists... Done    
Building dependency tree          
Reading state information... Done
Building data structures... Done