My device GO 500 and my phone Samsung S7 does establish bluetooth communication, but internet is not available. In Go 500 my phone has status "connected", but I get the message " can not connect to internet". On my phone the Go 500 is listed as a device that can use internet sharing, but trying to connect the phone displays "cannot connect to Tom Tom GO 500". This used to work may be a year ago. Any ideas to what I am doing wrong?