Error Reference

MID Server down: no available MID Server for this request

MID Server down: no available MID Server for this request

Where this appears

This error appears in the ServiceNow ECC Queue when attempting to execute outbound integrations, discovery jobs, or orchestration workflows that require MID Server communication. The error is typically visible in the ECC Queue records under System Diagnostics > ECC Queue, and may also appear in system logs during automated processes.

Sourdough
Chrome Extension

Debugging this in a real instance?

Sourdough lets you trace "MID Server down: no available MID Server for this request" through system logs, script errors, and API health in the ServiceNow tab you are already using.

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Overview
Tasks
CMDB
API
Metrics
Monitor
Internals
Instance:sourdoughdev·Version:Yokohama
Instance StateONLINE
System StatusFully Operational
Session Timeout90 minutes
Logged-In Sessions2 (20 active)
Build Nameyokohama-12-18-2024_p1
IP Address10.159.128.43
Instance HealthHealth Score: 90%
🔥 5dSourdough (Chrome Plugin)Dark Mode

Cause

The MID Server service is stopped or crashed on the host server where it's installed, preventing it from connecting to the ServiceNow instance. (high likelihood)

Network connectivity issues between the MID Server and ServiceNow instance, including firewall blocks, proxy configuration problems, or DNS resolution failures. (high likelihood)

MID Server is in a validation-required state and needs to be validated by an administrator before it can process requests. (medium likelihood)

MID Server capabilities or IP ranges are misconfigured, causing the system to not find an appropriate MID Server for the specific request type or target. (medium likelihood)

All configured MID Servers are at maximum capacity or experiencing performance issues that prevent them from accepting new requests. (low likelihood)

Fix

Step 1: Navigate to MID Server > Servers in ServiceNow and check the Status column to identify which MID Servers are showing as Down or require validation.

Step 2: For MID Servers showing Down status, log into the host server and check if the MID Server service is running using the appropriate service management tool for your operating system.

Step 3: If the service is stopped, restart it and monitor the agent/logs/agent0.log.0 file for connection errors or authentication issues.

Step 4: For MID Servers requiring validation, click on the MID Server record and click the Validate button, then test connectivity using the Test Connection related link.

Step 5: Verify network connectivity by testing HTTPS access from the MID Server host to your ServiceNow instance URL on port 443.

Step 6: Check MID Server capabilities under the Capabilities tab and ensure they match the requirements of your failed requests in the ECC Queue.

Step 7: Review IP Range configurations if using IP-based MID Server selection to ensure your target systems fall within the defined ranges.

Step 8: If all MID Servers appear healthy, check System Diagnostics > Stats > MID Server Statistics to identify performance bottlenecks or capacity issues.

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