Garmin DriveSmart 65 & Traffic

Hello, I'm having trouble all of a sudden with my unit to where I cannot get a connection to Garmin Express, nor POI Loader so that my computer can find my unit, and that I can add Custom POI's to my unit. I've read the instructions that from the main menu to select "Set up", then Select "System", then select "Interface", and then select "Host" to get a connection from my unit to computer again, but it is not showing up on my unit. Is there a solution for this issue and any help would be appreciated.