Baffling install problem

Did an bsdinstall FreeBSD-15.0-RELEASE on Monday past, no problem.
Today I try to install to a little Dell OptiPlex micro on hardwire LAN and it fails when it cannot download packages from pkg.FreeBSD.org.
This is booted off the same USB stick.
So I cancel install and switch to live system and try:
ping pkg.FreeBSD.org and get "can't resolve pkg.FreeBSD.org"
I can ping pkg.FreeBSD.org from any of my other machines.
ping 96.47.72.71 works on live system.
cat /etc/resolv.conf on live system prints "nameserver 192.168.1.11". Which is IP of my dumb wifi AP that connects via my OPNsense appliance at 192.168.1.10.

Where on earth would it get that IP from?

Been at this most of the day and think now is time to break out the cognac.
All help appreciated.
 
Ping -4 for inside a ipv4 LAN? Not sure but this once took me some time when they added the -4 parameter. I still always have to think of it because the error is off-context.
Other chance is that there's no gateway ip: #route add default <modem inside ip>
 
if you can ping the public ip 96.47.72.71, means your dns resolv is not working on 192.168.1.11

try and edit the /etc/resolve.conf nameserver record pointing to 8.8.8.8 see if it works to finalize your installation.

Usually DNS records come from dhcp server within a LAN when your system doing dhcp request (Dell OptiPlex). Are you using static or dhcp on your LAN ?
 
cat /etc/resolv.conf on live system prints "nameserver 192.168.1.11". Which is IP of my dumb wifi AP that connects via my OPNsense appliance at 192.168.1.10.
Is your OPNSense device also the DHCP server?
Does your dumb wifi AP also have a DHCPserver?
I would make sure only one DHCP server is running I would prefer the OPNsense device, make sure it's handing out a valid nameserver
 
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