Are you using https?
Osirus
Then go to your server dhcp and put a dhcp exclusion for the pi hole ip and anything else you have static'ed
Plug a pc straight into the router and do an ipconfig /all. It will tell you the router gateway if you don't have a static ip. Go to the gateway ip and turn off dhcp.
Are you on the same subnet as your router or are you on the subnet that your custom dhcp server is handing out? If your router is 192.168.1.1 and your ip is on the 192.168.2.x range, they aren't going to be able to communicate.
Firefox is way worse. Fucking bookmarks don't even have icons half the time in shit-ass Firefox and it's dated as hell. Fuck firefox.
Why couldn't he just shut it down if he wanted to? What's the purpose of wasting that much money slowly?
Don't even start with that "I read that as" "the hero we need" or any other reddit catchphrase bullshit. Go back to reddit if you are going to use those annoying af sayings. We don't need it here.
Isolate a pc with the router and download advanced ip scanner. It will list all active ips and there should only be 2