Eclipse update error: "Unable to connect to Repository"

Question

When I try to install a new Eclipse update in "Available Software" the following error appears:

Unable to connect to Repository http://download.eclipse.org/releases/kepler/content.xml

Connection to download.eclipse.org refused

I’ve cleared the firewall, but the error persists.

Answer 1

No details about your system, internet access and Eclipse version, there are two things you can check to try to resolve the issue:

1. Giving preference to Ipv4

   Based on the error message, the problem is usually related to the way the server is connected download.eclipse.org.

   You can in your eclipse.ini ^(English) add the following:

   -vmargs -Djava.net.preferIPv4Stack=true
   

2. Verify Port

   You can access network settings and check which port is indicated to use:

   Window Preferences General Network Connections

   There should be door 80 which is the default.

   You should also pay some attention to the configuration of the network to know which port(s) of output are authorized.