FTL is offline after update to 4.0

[deHakkelaar]

@mon_dieu

$ grep -v '#\|^$' -R /etc/dnsmasq.*
/etc/dnsmasq.conf:dhcp-range=192.168.4.20,192.168.4.200,255.255.255.0,24h

First get ride of above setting as it doesnt belong to Pi-hole and might conflict with other Pi-hole settings.
Edit the file /etc/dnsmasq.conf and remove or hash out the dhcp-range= line.

Restart FTL and check again:

sudo systemctl restart pihole-FTL

sudo systemctl status pihole-FTL -l

Next setup the routers DHCP server settings like described on below FAQ (methode 1 or 2):

How do I configure my devices to use Pi-hole as their DNS server?

Three methods Generally, there are three different methods that will enable devices on your network to be protected by Pi-hole. 1. Define Pi-hole's IP address as the only DNS entry in the router Rationale Only is italicized here for a reason: Pi-hole needs to be the only DNS server because it intercepts queries and decides whether or not they should be blocked. If you have other DNS servers configured, you may be sent to the correct domain, bypassing Pi-hole completely. Because of this, we re…

Or if settings lacking or not exposed on the router, configure Pi-hole to do DHCP for your network instead of the router:

How do I use Pi-hole's built in DHCP server (and why would I want to)?

Using Your Existing Router For Network-wide Ad Blocking You might not need to use Pi-hole's DHCP server: In many home environments, your router also functions as your DHCP server. In this case, you can often set Pi-hole to be the DNS server for your network clients in the router's DHCP (or LAN) settings page, which allows all of your network clients to block ads simply by connecting to the network. Setting it up this way is also what makes Pi-hole very powerful for network-wide ad blocking. W…

Testing DNS resolution and blocking can be done with below one on one of your client PC's (Linux, Windows or Mac):

nslookup pi.hole <PIHOLE_IP_ADDRESS>

Below an example from one of my clients with 10.0.0.2 being my Pi-hole IP:

C:\>nslookup pi.hole 10.0.0.2
Server:  noads.dehakkelaar.nl
Address:  10.0.0.2

Name:    pi.hole
Address:  10.0.0.2

Or a naughty domain getting redirected to 0.0.0.0:

C:\>nslookup doubleclick.com 10.0.0.2
Server:  noads.dehakkelaar.nl
Address:  10.0.0.2

Name:    doubleclick.com
Addresses:  ::
          0.0.0.0

Above nsloolups should generate stats on the Pi-hole web GUI.