My TrueNAS can't connect to active directory. It's show error

TrueNAS General
1

Recently, I installed the new TrueNas(25.10.0 - Goldeye) on server. But it can’t connect my AD. It show the following message:

FAILED

The resolution lifetime expired after 5.103 seconds: Server 10.20.97.2 UDP port 53 answered The DNS operation timed out after 3.999 seconds; Server 10.20.100.2 UDP port 53 answered The DNS operation timed out after 0.995 seconds

Who can help me?

2

What are those IPs?

What is the IP of your AD?
Did you set your AD as a DNS resolver for the truenas?