In case you have any firewall rules set, please white label the following Joan Portal IP addresses. Joan servers will communicate through these IP addresses when reaching out to calendars. The Inbound and outbound communication is done through TCP port 80 and 443 on the following IP addresses:
IP address:
34.68.57.7
34.83.237.92
34.96.247.100
34.92.222.1
35.201.1.33
34.87.216.39
34.77.229.140
34.78.207.99
35.241.198.134
104.196.125.173
If you fail to update your firewall rules the Joan devices won’t be able to properly sync with your calendar.