I am not able to sign in to Facebook for HTC Sense over WiFi on my Desire HD. The only way to add an account is to switch off the WiFi and let it sign in using my data plan. The error message I get is: "The service is currently unavailable. Do you want to try again?" I also get this same message if I try to login from the Friend Stream widget. If I sign in over my data plan it works and it starts syncing the contacts. However if I switch WiFi back on, it would sync the live feed but not the contacts; I get this error: "Sync is currently experiencing problems. It will be back shortly" I've been looking for a solution all day today, without any luck.. It would be great if someone knows anything about this issue..