Some users may have more advanced networks that may be blocking outbound access on their firewalls. In some cases, this may prevent Alta Labs devices from communicating with the cloud controller.

Note: These firewall changes are only necessary if you’re using the free cloud controller. If the Alta Control Appliance or self-hosted options are in use, these changes are not necessary.

Ports:

1. TCP Port 443; may also be referred to as HTTPS in some firewalls
2. UDP Port 123*; may also be referred to as NTP

* - Required for time synchronization purposes via the Internet only.

Hostnames:

1. manage.alta.inc
2. ping.alta.inc
3. dl.alta.inc
4. For NTP only:
   1. 0.openwrt.pool.ntp.org
   2. 1.openwrt.pool.ntp.org
   3. 2.openwrt.pool.ntp.org
   4. 3.openwrt.pool.ntp.org

Protocols:

Please ensure you have ICMP enabled on the LAN side of your router. You can further narrow this down to a specific subnet and/or VLAN if desired. ICMP is not required nor recommended for the WAN side.