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23.7 Legacy Series / Baffled over strange behaviour
« on: August 01, 2023, 12:58:46 pm »
I'm having a strange problem and I have no idea where to even start. I'll try my best to explain:
At seemingly random intervals (we are talking days or weeks), the network suddenly goes down for the PCs on our LAN. Between these PCs and OPNsense there is 1 Cisco and 1 HP (fibre) switch and the connection to both of those also dies (from the PCs LAN). No WebGUI, no ping. Each time it has happened I've run around like a headless chicken trying to fix it by rebooting the switches, rebooting PCs, etc. etc. because surely it must be here the issue lies. Well, the fix was to reboot OPNsense - then everything comes up back again. But how does OPNsense taking a crap kill ping to a switch two hops away?
A simple diagram:
Several PCs connect to Cisco switch ----> HP switch connecting different LANs ----> OPNsense ---- Internet ---> Dragons
I tried using Wireshark, but couldn't see anything out of the ordinary, but then again I'm no expert. The fix for now is using an older OPNsense box, but it is a bit too slow to handle the almost 1 Gbit/s traffic, so I got to get the newer one running as soon as possible.
Running latest version (23.7 I believe?) on both boxes.
At seemingly random intervals (we are talking days or weeks), the network suddenly goes down for the PCs on our LAN. Between these PCs and OPNsense there is 1 Cisco and 1 HP (fibre) switch and the connection to both of those also dies (from the PCs LAN). No WebGUI, no ping. Each time it has happened I've run around like a headless chicken trying to fix it by rebooting the switches, rebooting PCs, etc. etc. because surely it must be here the issue lies. Well, the fix was to reboot OPNsense - then everything comes up back again. But how does OPNsense taking a crap kill ping to a switch two hops away?
A simple diagram:
Several PCs connect to Cisco switch ----> HP switch connecting different LANs ----> OPNsense ---- Internet ---> Dragons
I tried using Wireshark, but couldn't see anything out of the ordinary, but then again I'm no expert. The fix for now is using an older OPNsense box, but it is a bit too slow to handle the almost 1 Gbit/s traffic, so I got to get the newer one running as soon as possible.
Running latest version (23.7 I believe?) on both boxes.