"Random" package drop/FW "default deny rule" match

[andreab]

Hi,

I want my pc (10.55.56.77) to manage/access resources on a different subnet (10.55.55.0/24).

With tools like "mtr" I pinged a server (10.55.55.34), setting the interval to 0.1 seconds and not losing a single ping for however long...

Sometimes though, some packages are getting dropped (as shown in the Opnsense UI screenshots attached), and I get kicked out of SSH sessions and web UIs etc.
The SSH sessions I'd say last 20/30 seconds, while web UI look slow at times, and some other times I get logged out too...

I obviously try adding rules which should have allow my management network to access everything, but some packages always end up getting caught.


Can anyone advice on how I should be debugging an issue like that please?


Thanks in advance for any tip.

Regards,
Andrea