Greetings,
We do not have documentation specifically for Pi-hole, so I’m unable to provide step by step setup instructions, as that falls outside the scope of our technical support. Could you please clarify what exactly is not working?
For setting up Docker on the RUTC50, you can follow the instructions provided here: Docker Configuration Example - Teltonika Networks Wiki
More information can be found here: RUTC50 Docker - Teltonika Networks Wiki
As @vogon mentioned, you can also find instructions for setting up AdGuard Home on our forum if that is of interest to you, for example: How can I install Adguard Home on the RUTC50?
Best Regards,
Justinas