Thanks for replying. AFAIK RAM is never maxed out. Runs around 30 to 35% of the installed 12GB. Same for CPU, I rarely see anything above 5 to 10% utilization.
States table has 812000 entries, to which only 2000 or so are used at any given time.
I left my house friday night for the weekend and came back yesterday. When I left, I had disabled fpblockerNG and DNSBL. When I came back home, everything was working fine. I activated pfblockerNG and DNSBL, went to bed, the internet was still working. This morning, the internet was down again.
I am 99% convinced pfblockerNG or DNSBL are to blame. I tried resetting the states table, do a force reload on pfblocker and DNSBL (although they were deactivated I thought that could maybe help) and had to reboot the firewall once again.
Next step is to find the reason for this. Anybody has an idea on how to troubleshoot this?
To me it looks like a DNS resolution issue more than actual connectivity to the web since pfsense still can access the outside world but nothing from the LAN can reach out... I may be wrong. I also thought Unbound was crashing but it appears to be always run fine...