Please follow the below template, it will help us to help you!
Expected Behaviour:
Should be blocking ads on all devices.
Actual Behaviour:
Isn't blocking ads on any device.
Debug Token:
f5miauvjla
Sorry to keep you waiting, but can you run pihole -d again for another debug token? Thanks. Also, if you have more details, that would be appreciated.
Have you taken a look at this FAQ?
Shooting from the hip here since there was not enough information included in your OP.