Entra Connect Sync error

Question

Hi,

We're installing Entra Connect Sync 2.4.131.0 on a stagging server and we're having this behavior on same connectors.

Sometimes we've this error when accessing a connector using DNS.

If we configure directly on the connector with dns name still occurs, but if we configure using ip address it works fine.

It appears to be a DNS records issue but i couldn't find it out.

Help would be appreciated.

Thanks