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When I try to update the software updater says check your internet connection. (Failed to access repository information)

My Internet is working just fine.

I have tried many different servers. (Main,US,ext.)

Also, I do not have a proxy.

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marked as duplicate by karel, A.B., muru, Eric Carvalho, v2r May 10 '15 at 9:28

This question was marked as an exact duplicate of an existing question.

    
Open a terminal, type sudo apt-get update and tell us what the result was (preferably paste the output). – January Jul 8 '13 at 10:47
    
Err launchpad.net raring/main i386 Packages The requested URL returned error: 404 Not Found Ign launchpad.net raring/main Translation-en_US Fetched 630 kB in 24s (26.2 kB/s) W: Failed to fetch launchpad.net/~sunab/+archive/kdenlive-release/dists/raring/… The requested URL returned error: 404 Not Found W: Failed to fetch ppa.launchpad.net/launchpad.net/webupd8team/ubuntu/dists/raring/… 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. – Lucas Jul 8 '13 at 16:30

In Terminal Type

sudo apt-get update

And Relaunch Software Updater . This resolved issue on my machine.

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The comments below the question already mention that this doesn't work. I'm flagging this answer for deletion. – MadMike Feb 6 '15 at 12:29
    
I faced the same error on my machine and 'sudo apt-get update' solved the problem. I think its worth the try for other people who are facing this issue. – Deenbandhu Prasad Feb 20 '15 at 14:05

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