I am using ping from pfsense to switch, ping from 2 machines to the gateway and switch. (direct connected patch cord 1,5m cat6)
from any manchine to switch is always 1ms, only pfsense seens to have variations.
I changed the cable, port, even to another switch but any ping from pfsense or to pfsense is instable, for me it looks like a software problem because its only start happing after all services from pfsense is up.
But I disabled almost all non essentials services but no luck.
my nic has 4 ports, 3 wan ports with avg of 0,5ms!!!! I even changed ports to see if anything change, no luck!