_Name: Apt Authentication issue Priority: High Terminal: False Command: gksu -- synaptic --non-interactive --update-at-startup --hide-main-window GettextDomain: apt _Description: Problem during package list update. The package list update failed with a authentication failure. This usually happens behind a network proxy server. Please try to click on the "Run this action now" button to correct the problem or update the list manually by running Update Manager and clicking on "Check".