Your organization's firewall must allow TCP connections to the appropriate IP ranges so that the BlackBerry Proxy can connect to the BlackBerry Dynamics NOC.

Alternatively, you can configure your organization's firewall to allow connections to host names specifically for BlackBerry Dynamics apps, listed in Mobile device configuration (Wi-Fi requirements).

If you do not configure a web proxy server for a BlackBerry Proxy instance, your organization’s internal and external firewalls must allow connections over port 17533. If you configure BlackBerry Proxy to use BlackBerry Dynamics Direct Connect, your organization’s external firewalls must allow connections over port 17533. For more information about configuring BlackBerry Proxy, see the Configuration content.