NXP-12122: Handle URLError + improve error message mentioning possibly bad proxy settings
NXP-12122: Propagate exception message to authentication popup
NXP-12122: Propagate exception message to synchronizer logs + set level to error
NXP-12122: Propagate exception message to commandline logs
Cosmit
NXP-11964: Fix random test failure in TestAuditFileSystemChangeFinder#testGetChangeSummary