My ubuntu version is: Distributor ID: Ubuntu Description: Ubuntu 18.04.3 LTS Release: 18.04 Codename: bionic

I am getting the following error while trying to install

E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/pool/universe/a/atlas/libatlas3-base_3.10.3-5_amd64.deb Cannot initiate the connection to in.archive.ubuntu.com:80 (2403:8940:ffff::f). - connect (101: Network is unreachable)

Searching in the web for similar errors suggested that I have to url






But my Ubuntu version is the latest one. I don't think network connection is an issue.Any help would be appreciated

  • "(101: Network is unreachable)" means that your network does indeed seem to be an issue.
    – user535733
    Mar 5, 2020 at 2:18
  • FYI: Your system likely isn't fully upgraded though, as it'd respond 18.04.4 not 18.04.3
    – guiverc
    Mar 5, 2020 at 2:22
  • I ran the following comments sudo apt-get update and sudo apt-get upgrade before installing, is there anything else I have to do. Also, maybe network is not an issue because I am able to write this because of the same internet
    – Hrushi
    Mar 5, 2020 at 2:35

1 Answer 1


My internet connection was LAN and maybe the firewall blocked access. However, when I try to install over wifi, it works. My bad, I should I have tried it before

  • Good job figuring it out!
    – user535733
    Mar 5, 2020 at 2:50

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