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Common Discovery Error and Troubleshoot

New article articles in ServiceNow Community · Oct 27, 2025 · article

1. Authentication Fail

Causes

- Incorrect Credentials

- Insufficient Permission

Resolution Steps

- Verify Credentials

- Credential test feature

2. No Response From Device

Causes

- Device Firewall blocking

- In correct Ip Address

Resolution Steps

- Verify network connectivity (Ping , Telnet )

- Check firewall rule

3. Duplicate Ci

Causes

- Manual entries

- Inconsistent reconciliation rule.

Resolution Steps

- Stop Manual creating CI

- Create Reconciliation rule properly.

4. Discovery Time Out

Causes

- High network latency

- Over loaded Mid Server

Resolution

- Increase Discovery time out.

- Assign additional mid server

Thank You

LinkedIn : https://www.linkedin.com/in/harish-baisla-8895aa22a/

ServiceNow Community Rising Star 2024 and 2025

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https://www.servicenow.com/community/itom-articles/common-discovery-error-and-troubleshoot/ta-p/3413389