Hi
I have been traveling so I have not been able to respond.
I have made some changes and to my Pfsense which has fix many issues. Yes this is a simple setup with a single NIC computer running Pfsense.
Yes, It is a router on stick which I find is good for a small home office. You need to trust VLAN technology to be able to use router on stick designs.
I trust vlans and vlans is very practical in many ways. I will later on change from VL1 to something else as it is not recommended for security reasons
to use VL1. Pfsense, Netgear and Cisco talk vlan via Dot1q protocol, Cisco used to also do vlans via their proprietary protocol ISL but they have skipped that one
many years ago.
I have been using my own DNS for many years because of security and the low latency in DNS resolution. I like to keep my data in my log own files
rather having them at Google Datacenters :)
So I was running version 2.6 when I had "my" issues. I noticed in systems log that when I was loading the NIC with "more" traffic, NIC often
"decided" to restart which of course caused issues. I use a builtin Realtek Gigabit card in my Pfsense server and have found out that more people
than I have had issues with Realtek.
I have now upgraded the Pfsense to version 2.7, I have not started services like Snort, DNSBL for now.
I only run Ntopng 5.7.2 and the setup seem to work much better with my HW compared to when I was using 2.6 version of Pfsense.
No more odd NIC restarts when I load traffic on the network,
I am really happy right now and I love Pfsense. :)