@lukass2000 Hello, now I get the following result

@BLTplays okay, think it is enabled First run 'dig 192.168.10.200 google.com' second run

@BLTplays yes, resolv.conf have the ip of the pihole. Didn't change anything with caching. If that's not enabled by default, surely that's disabled? Where can i enable the PiHole caching? Thanks :)

@BLTplays Is there any way to speed up access? Which Raspberry model do you use? I've read that even a Raspberry Pi 1 should be enough for PiHole. Surely a 3b should be enough?

Yes, the secondary DNS entry (i.e. 1.1.1.1) should step in if, e.g. the Raspberry fails. That's how it's supposed to be, or not? It would be bad if the whole family no longer had internet because...

Hi :) What information is needed? The hardware? Use the Follow Controller - OC200 Controller Version 5.12.9 Router - ER7206 Switch - SG2218 2x AP - ERP245 2x Raspberry Pi 3b with PiHole 5.17.3 Thanks...