Active Directory Test Connection Failed on UI, but success on VA

Hey guys

We are getting this error when testing connection on Active Directory source:

But when using nc on the va for the hosts, it says the connection succeeded:

Have you ever seen anything like this? How to even know where is the error?

Hello, please below details

1.Verify Service Account Status

2.Test Directly from the VA: Use network troubleshooting tools (like ping and nc) from the VA’s command line to ensure it can communicate with your AD domain controllers on the necessary ports. A successful test here confirms the VA’s local connectivity is fine

@YMDasu WADR, have you read the OP?

Hi @Caio_Nakayama Hard to diagnose as it sounds like misconfiguration on the ISC side. I can only suggest double checking your forest and domain parameters.

The strange part is that the configuration seems correct, the source even appears as healthy:


But the test connection still fails, and provisioning fails too, with timeout:

Have you got a GC configured in forest settings?

no, only the forest name:

Could potentially be DNS resolution issues trying to resolve the forest name via an SRV record. Try adding a known GC server to the forest settings.

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