!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
This doesn't work with latest firmware 3.0.0.4.386_46395-g1fd22d2
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Disable internet connectivity check

Here is existing configuration with internet connectivity check on my router

nvram show | grep dns_probe
dns_probe_host=dns.msftncsi.com
dns_probe_content=131.107.255.255 112.4.20.71 fd3e:4f5a:5b81::1

Changed to this for "No internet connectivity check" (and still green icon in the web gui):

nvram set dns_probe_host=""
nvram set dns_probe_content=0.0.0.0
nvram commit

There are some suggestions to use 127.0.0.1 instead 0.0.0.0 in dns_probe_content but four zeros work for me:-)

DNS configuration

WAN

Jump into the web gui and adjust:

• WAN -> WAN DNS Setting -> Connect to DNS Server automatically: NO
• Keep both entries for DNS servers empty

Use with combination of "Disable internet connectivity check" to avoid "Internet status: Disconnected".

LAN

Configure secondary DNS server same as primary/or you second pi-hole (if you have it):

nvram set dhcp_dns2_x=X.X.X.X
nvram commit
service restart_dnsmasq