Incoming connection only accepted on the highest priority WAN

[nvdokh]

I have 2 WAN connections. Both with distance of 10 but with different priorities. However, after upgrading to 7.4.2, only the “active” WAN with highest priority (lower number) accepts incoming connections (admin, VPN, etc.)

Any idea how to fix this or what has changed from 7.4.0 to 7.4.2?

[AEK]

Do you have asymmetric routing or auxiliary session enabled?

show full system settings | grep asym
show full system settings | grep aux

[nvdokh]

all show disabled

# show full system settings | grep asy

set asymroute disable
set asymroute-icmp disable
set asymroute6 disable
set asymroute6-icmp disable

# show full system settings | grep aux
set auxiliary-session disable

[nvdokh]

UPDATE:

Fortinet support notified me that this is a known issue starting 7.4.1 and will be resolved when 7.4.4 comes out in the second half of March 2024.