@Dietmar: this is not a general issue, and not enough information is provided in this bug report to say if you and the bug reporter has the same issue (i.e. same hardware), so please open a new bug report by running "ubuntu-bug network-manager" in a terminal.
@Erik A: are you able to now run "apport-collect -p network-manager 997114" in a terminal?
@Dietmar: this is not a general issue, and not enough information is provided in this bug report to say if you and the bug reporter has the same issue (i.e. same hardware), so please open a new bug report by running "ubuntu-bug network-manager" in a terminal.
@Erik A: are you able to now run "apport-collect -p network-manager 997114" in a terminal?