We have a new pair of PA-2050 (HA).
The last two weeks works fine with 4.0.1 but last Thursday I upgraded them to 4.0.4 and two of our networks had problems to go trought the firewalls.
I saw in the traffic monitor that the rules were ok and that traffic were allowed, but the response not reach any equipments of that network.
Then i use wireshark and saw thath the mac destination from the firewall was 00:00:00:00:00:00, the packet that go into the PA interface was correct (with origin and destination MAC) but the response had the correct source MAC but incorrect destination MAC.
I solved it with a downgrade to 4.0.1.
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