I recently updated eclipse to the latest Oxygen version.
I don't really mind much if I am not using the latest version of each software, but whenever eclipse prompts me to update something, I go ahead and accept it as I trust it knows what it's doing. Since I have some plugins installed and since I've had eclipse for quite some time, I have a long list of software sites listed in my Install/Update preference pane.
Lately some of these sites seem to have stopped responding, so I removed them from the list. Upon clicking on help > check for updates however, they simply come back to the list.
Could someone explain to me why this keeps happening and why I am unable to control what eclipse is contacting?