Netbeans update fail

Question

I have no problem in my internet connection. But getting every time this screen when I try to update netbeans plugins or IDE itself.

Answer 1

I've tried every solution and no ones worked for me, but...something did it.

I changed every url in Tool > Plugins > Settings from http to https.

Example:

Name: Certified Plugins
URL: http://updates.netbeans.org/netbeans/updates/8.0.2/uc/final/certified/catalog.xml.gz

To:

Name: Certified Plugins
URL: https://updates.netbeans.org/netbeans/updates/8.0.2/uc/final/certified/catalog.xml.gz

And finally I can update my plugins and obtain the list of newest plugins.