2024-07-15T19:00:00Z
Today we have 3 Raspberry PI 4 connected to a LAN network that is militarized by a Pfsense firewall.
All these PIs worked without problems until a few weeks ago.
All Firewall rules allow IPV4 TCP/UDP for all ports.
We know that ports 53, 443 and 123 are requirements for operation.
Question! of what could be restricting
Is it necessary to have some protocol or gateway released, such as NAT, for it to work, or another form of release?
If we disconnect these PI 4 and connect to a Lan network without a firewall, it connects perfectly, connected directly to the operator’s modem before the Firewall’s perimeter.
Note: We have another client who also has the same PFSENSE firewall and uses it without problems, always with Online Status.
Balena OS version: balenaOS 5.2.8
