Messages

Thank you for the suggestions.

a) I've set 1.1.1.1, 8.8.8.8, and 9.9.9.9 as my DNS servers (on the System / Settings / General page); they show up at the top of my Routes for my WAN port (followed by my ISP's DNS servers)

b) Thank you for flagging double NAT; that sounded like a contender for my symptoms; but so did a few other things, and I was having trouble knowing which order to debug in.

And no, my ISP router wasn't in bridge mode; that option appears to have been disabled by my ISP. I  tried IP Passthrough, but I lose internet entirely, and my OPNsense WAN port never receives an IP address. That appears to be another ISP-related issue.

I've now tried enabling DMZ in my ISP router, for my OPNsense WAN IP address. I've just enabled that, and haven't had a repeat of the NXDOMAIN error yet, so I'll keep monitoring that; and read up on the limitations of DMZ.

Thanks!

Thank you.

Hello,

I'm new to OPNsense. I'm trying to set it up for my home, including a small homelab; but I'm getting intermittent failures with DNS lookup from my Mac desktop, and from my phone via wifi.

When I visit webpages from my desktop (wired connection), many sites return the error DNS_PROBE_FINISHED_NXDOMAIN; it ranges from about 5% to 80% of sites I visit. The percentage increases the longer I'm using the web. If I leave the pages open in my browser, then in general, the pages finally resolve, but it takes anywhere from 2 minutes to an hour.

When I browse with my phone via wifi, I also get errors visiting various sites; I can resolve this on my phone by temporarily disconnecting from wifi, accessing the sites via cellular data, and then re-connecting to wifi; those domains then resolve correctly.

My path is as follows:
 - ISP Router <-> OPNsense 25.7 on a Protectli <-> Netgear managed switch (default settings, no VLANs defined yet) <-> iMac, WAP, other computers, etc

It's unclear to me how best to troubleshoot this. I've searched these forums (and googled widely) for DNS_PROBE_FINISHED_NXDOMAIN, DNS lookup, etc; and have found various suggestions about what my settings should be, which I believe I am following.

Any suggestions for a troubleshooting path?

Thank you.