My Nuvi 2557 is working perfectly until I upload my routes to the device. After I upload the routs to the device, the Nuvi 2557 doesn't connect properly to the computer. I have 14 of them for my small business and it is happening to all of them.
The way I am uploading the routes is dragging the GPX files from my computer to the Nuvi 2557. Then when I turn the Nuvi on, it breaks the routes up into 30 point sections.
Any ideas why this is happening? Why the Nuvi would all of a sudden not talk to the computer? Is there a better way to upload the routes to the Nuvi then simply dragging them over?