@coinsgaga let me assist.
according to information available in Brief Introductory for Operatos
execute the ‘sct testnet’ command to make sure you are operating on the realm of the Test-Net.
otherwise you are trying to execute ifconfig in the ‘realm’ of ‘localhost’ and by default Network Manager is not available.
When using Virtual Terminal over SSH, it takes you to the Test Net realm by default, when running a node of your own, and when accessing terminal through the executable - that is not the case and one needs to selet the realm manually.