This is actually a very generall question. I often spend hours to trace a problem within the Firewall Rules and Policies, if there is blocking rule then I am actually able to find it fast in the log viewer.
But if there is no rule then I mostly go trough endless trial an error sessions.
For example I have a camera which was on port 86 with HTTP only. So I switched it for a new one which has HTTPS, so I changed the port from 443 to 440.
I opened the port in my DSL Router just as the other so I am pretty sure it comes in. But chaning it in the Firewall and NAT rules did not help.
So my question is how would I trace this problem?
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