I have a one Fortigate ( 80F) with last version of firmware(FortiOS v7.0.3 build0237).
I added some policies on it and installed it for our client.
Our client claim that he can not access to their local server which is in same IP range, I mean for example from 192.168.1.2 can not access to 192.168.1.250. He claim that when restarting the Fortigate its working fine but after for example 5 hours again Forigate dropping all connection and as result again he can not access to their server.
Have you ever seen this kind of issue?
Could you please give me some advice?