It seems that the connectivity problems for Nokia Lumia 900 problems in Canada are over. Rogers Canada is pushing out the Nokia Lumia 900 update. The update is designed to address the loss of data connectivity that was big problem for many Lumia 900 owners.
If an update notification hasn’t hit your handset yet, you can manually apply the update via your PC by connecting to the Zune desktop app. Mac users can use Windows Phone 7 Connector
Also a reminder, if you purchased your Lumia 900 on or before April 21st, Nokia will credit your Rogers wireless bill $100.