.. _FirewallWithCloud: Firewall Configuration for Devices Linking with Cloud ======================================================= If the SyncSign Hubs are installed in your office network but are still unable to connect or update the displays, please check the following on your WiFi router or firewall: Services by SyncSign (Outbound) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +------------+---------+------------------------------------------------+----------------------------------+ | Protocol | Port | Destination Domain | Functions | +============+=========+================================================+==================================+ | TCP | 8883 | a1zjlbcv9qbzin-ats.iot.us-west-2.amazonaws.com | MQTT Remote Notification | +------------+---------+------------------------------------------------+----------------------------------+ | TCP | 443 | api.sync-sign.com | SyncSign Device/Client API | +------------+---------+------------------------------------------------+----------------------------------+ | TCP | 443 | sync.sync-sign.com | Device Health Report | +------------+---------+------------------------------------------------+----------------------------------+ | TCP | 443 | update.sync-sign.com | OTA Update Server | +------------+---------+------------------------------------------------+----------------------------------+ | TCP | 443 | file.sync-sign.com | Image Assets Resource Server | +------------+---------+------------------------------------------------+----------------------------------+ | TCP | 80 | pub.sync-sign.com | Time Server (as failsafe to NTP) | +------------+---------+------------------------------------------------+----------------------------------+ Basic Network Services (Outbound) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +------------+---------+------------------------------------------------+----------------------------------+ | Protocol | Port | Destination Domain | Functions | +============+=========+================================================+==================================+ | UDP | 123 | pool.ntp.org, 0.asia.pool.ntp.org, | NTP Time Synchronisation | | | | europe.pool.ntp.org, time.google.com, | | | | | 0.north-america.pool.ntp.org | | +------------+---------+------------------------------------------------+----------------------------------+ Services by Data Sources (Outbound) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +------------+---------+------------------------------------------------+----------------------------------+ | Protocol | Port | Destination Domain | Functions | +============+=========+================================================+==================================+ | TCP | 443 | www.googleapis.com | API of Google Calender/G-Suite | +------------+---------+------------------------------------------------+----------------------------------+ | TCP | 443 | graph.microsoft.com | API of Office 365 Calendar | +------------+---------+------------------------------------------------+----------------------------------+ See also: - :ref:`HubNetworkInbound` - :ref:`FirewallWithSOPS`