I receive a connection error when attempting to sign in or sign up to the BlackBerry application

When you receive a connection error there are three possible reasons:

1. You don't have a data connection.
   Solution: Verify you have a data connection either through your carrier or WIFI network
2. Your APN is disabled or not set.
   Solution: Verify your APN settings are enabled and set correctly by contacting your carrier. Most carriers have a specific APN setting that must be designated on the BlackBerry.
3. A specific IT policy is blocking you.
   Solution 1: Verify your IT department is not blocking third party applications through a firewall or BES.
   Solution 2: Even if you do not have an IT department, there may be settings on your internet connection that block your phone?s ability to access your connection.
   Solution 3: If you have a BES or BIS connection you can designate those settings. Go to the Menu Button (while inside YouMail) > Settings > Connections. Check your ?connection type? settings. The default is TCP and generally works for most users. Choose BIS or BES appropriately if that is the correct connection. Auto may also work, but try each one out. Please note: If your connection type is truly BES and BIS your IT policy must permit access to third party apps.