Probably similar to other people's problems, but haven't found a solution. I don't belive I did an update, upgrade or reboot. I am unsure what caused the problem. I only noticed by accident that PiHole was having problems. My pihole is not the DHCP server, has a fixed IP address. This does not seem to be causing any problems with network devices navigating.
First my FTL was offline and Lost Connection To API was showing. Then I discovered that the DNS was missing so I forced it to 18.104.22.168. That allowed the sudo pihole -r to work and to download its update. DNS servers now show as:
pi@raspberrypi:/var/log $ nslookup www.google.com Server: 127.0.0.1 Address: 127.0.0.1#53 Non-authoritative answer: Name: www.google.com Address: 22.214.171.124 Name: www.google.com Address: 2a00:1450:4002:807::2004
At this point I have "Lost --- --- API" across the top of the dashboard and all the graphs are spinning circles. I have tried:
- repair and a reconfigure options but neither fix the problem.
- rebooting and restarting services, flushing logs and network tables
The pihole-FTL.log is https://pastebin.com/HYb72C0E
Not sure where else to try. I followed the guide to install screen and gdp. GDP was already installed and screen doesn't seem to do anything. maybe I misunderstood something.
Any ideas what to try next?