DNS issues?

Adcadet

Storage Freak
Joined
Jan 14, 2002
Messages
1,862
Location
44.8, -91.5
Very frustrated. Hoping this old gem of the internet can save me.

My two kids both have relatively new PCs, both runs Windows 11. My wife and I run Windows 11 as well. My kids would each, individually, occasionally not be able to connect with Discord, Steam, or other gaming servers. I would flush DNS cache, restart the machine, curse, it would work again magically. Tonight my youngest's machine had this issue, and for the life of me, I can't get things working again. The easiest way for me to tell that the internet connectivity is borked is (not ironically) googling "DNS reddit" and then not being able to follow any of the links. Many other sites don't load as well (e.g. Nvidia). Trying wired, wireless, and USB wireless adapters didn't seem to help. Booting into a copy of Linux Mint live CD (USB) got the same errors. Using Window's reset network feature didn't help, not did a Windows 11 reset (both the shorter and longer versions). I tried turning off Windows defender and antivirus. No help.

I suspect the issue is related to my network setup. My router is a Netgate appliance running pfSense. I have a virtual machine running PiHole. Disabling blocking made no difference. I tried setting the Netgate/pfSense to just use 8.8.8.8 and 8.8.4.4 (under general setup) and 1.1.1.1 and 1.0.0.1 under DHCP server/LAN with DNS resolver unchecked and DNS forwarder enabled. No joy.

When I manually set the computer's network card to use 8.8.8.8 and 8.8.4.4 under IPV4, Reddit loaded a few times before then refusing to work. Putting in the public DNS servers under IPV6 did not help.

Oddly, my other son is playing on his PC just fine the whole time, my PC is fine, and I can reboot my wife's PC and it works fine. No idea why the one PC seems so sensitive to what I suspect is a DNS issue.

I suspect I still have an issue with how I've set up pfSense, but I don't know enough about it. I hope I don't have to go back to using a junk consumer wifi router that just works.
 

ddrueding

Fixture
Joined
Feb 4, 2002
Messages
19,865
Location
Horsens, Denmark
I agree that it feels like a pfSense config thing, but I don't know enough about it to recognize the issue. But before I went back to junk consumer stuff I'd format, reinstall, and reconfigure the Netgate using the latest version of pfSense.

Separately, does the PiHole run on the Netgate? What happens when you turn it off entirely?

Does your internet connection support DHCP? What happens when you connect the misbehaving PC directly to it? Or, if it has WiFi, hotspot your phone, connect the PC, and see if there are internet issues.
 

sedrosken

Florida Man
Joined
Nov 20, 2013
Messages
2,012
Location
Eglin AFB Area
Website
sedrosken.xyz
Yeah, I use pfSense at home and it smacks of an obscure configuration issue but I couldn't tell you what. I'd maybe look at the time issue as well -- a few minutes makes a huge difference.
 
Top