DNS Server unreachable

While configuring an Active Directory in the agent, you may encounter the ErrorDialURL error on the WSTEP tab of the on-premises agent.

LDAP Result Code 200 "Network Error": dial tcp: lookup <DOMAIN-NAME>: i/o timeout

See below for a list of possible causes and the corresponding solutions.

• Firewall rules blocking access
• Invalid DNS settings in the agent configuration

Firewall rules blocking access

Firewall rules may block connections from the IP address of the agent to the DNS server on port 53.

ℹ See Agent network requirements for all the port access requirements.

Issue resolution: Edit the firewall rules to allow access.

Invalid DNS settings in the agent configuration

The DNS server settings were not properly defined when Adding Active Directory nodes.

Issue resolution: Edit the agent configuration to update the DNS settings.