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Thank you very much for the clear explanation. I'm sorry because it seems more like a network related question than an opnsense one, I should've known better.

I think I may have skipped some steps as it is feeling too advanced for me at the moment. I'll go back and study more about networking before using opnsense.

Cheers

Hello, everyone! I've decided to move from my haweii ax2s router to opnsense but I'm having some problems.

Installation went smoothly, I'm connecting to my isp via pppoe. My modem is on bridge mode and I have the opnsense machine connected to it via a pcie network adapter and the motherboard native ethernet port. I have internet on the machine and can ping external IPs no problem.

The problem starts when I plug my LAN connector to my switch, nothing works even though the opnsense machine has a working internet connection. The weird part is that when I connect opnsense directly to my PC, it has internet connection. Again, when I connect to the switch it stops working.

My switch is passive and I have 6 other devices connected to it. My past router had a subnet of 192.168.3.0/24, but now opnsense is on 192.168.1.0/24, could this be the culprit? How do I troubleshoot this?

Another problem that I had was when trying to setup opnsense with the same old subnet of 192.168.3.0/24. After the setup wizard is done, I can't connect to the machine at all on the new ip. The gui says the site is not reachable.

I haven't changed anything inside opnsense, I just ran the setup wizard.

I'm not tech savy and I'm starting with opnsense to learn and because I like to mess around things. Any guidance on sources to learn more about networking is very welcome.