Adgurad Problem HA and JD no Inet

Hi, I have Truenas Adguard installed and am running it on the Fritzbox. JDownloader and Homeasiten are not getting an Internet connection.

Access data > DNS SERVER
Preferred DNSv4 server IP Truenas / Adguard 192.168.178.200
Alternativer DNSv4-Server 8.8.8.8

and
Home network > Network > Network settings
IPv4-Adressen
Lokaler DNS-Server IP Truenas / Adguard 192.168.178.200

thx

To solve internet connection on JD, using pihole on the net, i found somewhere on JD forum that the easy way to solve Is not using blocker, so i add

dns: 
      - 1.1.1.1
      - 1.0.0.1

on my JD YAML and everything works

So, I’ve now entered the IP address only via the DNS Server. If I disconnect and reconnect the PC connection, it works for a short time.
I blocked TikTok, and it’s also blocked.
And I can access bs.to briefly, but after a few minutes, both don’t work anymore.
Titkto is accessible again, and bs doesn’t work anymore…