@stephenw10
Hello,
I put another server VM .2 in the same subnet as .1 server and after many attempts i reached to reproduce the latency with pcap and faced the same ACK latency ; so the PfSense is not in charge...i thought that becasue latency appeared when i set it up, weird coincidency.
I think i have to investigate on my vmnic configuration witch was made by a supplier, because .1 and .2 are on 2 differents ESXi hosts, despite that i am up to date on all drivers, patchs and others on my VMWare Infrastructure and on my core switch.
Thanks a lot for your help and time.

@akegec thanks ... no luck so far. I'll see if I can find the post you are referencing.

@firerobin said in pfSense VM latency and WAP performance issues:

@bmeeks Thanks again for the info. I'll ask around in neighborhood forums to see if anyone else is having issues with their xfinity connection. Hopefully I can find someone as knowledgeable as the folks in this forum, but then they'd probably already be on top of the issue 😬

Would this problem be as noticeable if they have a higher bandwidth service plan?

If you have issues with the node you are served from, a higher speed tier is not likely to help. An overloaded or malfunctioning node would be expected to affect all speed tiers. The one exception might be if they moved you to another node for a higher tier, but that is extremely unlikely as the node serving you is usually fixed due to the realities of coax cable routing on the poles.

To test and make sure a saturated uplink is not your issue, play your game at a time when you are 100% certain nobody else is using your Internet connection but you and your gaming machine. No streaming or anything else going on. If you have problems then, it is likely to be an upstream ISP problem. If you have no issues, then somebody really loading up on downloads can hurt your gaming and ping times as all the ACKs from the busy downloads can eat up the upload bandwidth.

Actually what happens is that I have packed drops/high latency when transfers over VPN are getting very slow, not fast. Then VPN server can easily reach half of the speed of my download DSL link (i.e 300Mbit/2=150Mbit) and then everything is OK. There are no issues when VPN is not used at all either. Problem is when the remote end behind VPN (=torrent sources) isn't that fast and download speed drops to say 10Mbit. Then torrent transfers are causing high latency/high packet drop on my link.
This is very similar case to this one (unresolved issue): https://forum.netgate.com/topic/125639/lots-of-packet-loss-and-high-ping-when-torrenting-through-pia-vpn
But it's not PIA VPN that I'm using (it's NordVPN).

What is surprising to me that, as said before, I had no such issues when Asus RT-AC68U was my router.

So, I think I found the source of my issue: my DNS setting.

I had shut off and uninstalled SquidGuard, Squid and Snort (in that order) and still had no luck. As soon as I changed my DNS settings to Google (for example), I no longer have any latency issues. Put back Squid and Snort and still no latency.

So, it looks like something with OpenDNS is causing my problem.

Off to try another DNS to see if it's still running ok.