The following endpoints need to be allow-listed:

MQTT

mqtts://mqtt.connectivity.siemens.com:443

Firmware Update Service

https://ota-update.connectivity.siemens.com:443

https://s3-eu-west-1.amazonaws.com:443

Container Image Registry

https://registry.connectivity.siemens.com:443 https://registry.horizoncloud.io:443

Bootstrap

https://bootstrap.connectivity.siemens.com:443 https://bootstrap.siemens.com:443

Authentication Proxy

https://proxy.connectivity.siemens.com:443

NTP Server

0.siemens.pool.ntp.org:123(TCP/UDP) (Main Server)

1.siemens.pool.ntp.org:123(TCP/UDP) (Backup Server)

2.siemens.pool.ntp.org:123(TCP/UDP) (Backup Server)

3.siemens.pool.ntp.org:123(TCP/UDP) (Backup Server)