had a problem with downloading gpx
For a direct connection between web planner and GPS, you may need to install one or both of the following, both downloadable free from the Garmin website.
a) Garmin USB driver
b) Garmin Communicator (browser plug-in)
Otherwise, you can download the GPX as a file, and put it on the GPS or mSD card, using normal file management. (Put it in the \Gpx\ directory.) You don't need either of the above for that.
If using BikeHike, I suggest don't download as a 'Route' - their Routes are basically broken, use one of the other options.