TimeoutError: Specified timeout of 5000ms was reached

Problem Statement

Occasionally users are unable to log in and see this error:

TimeoutError: Specified timeout of 5000ms was reached
Inner error: TimeoutError: Specified timeout of 5000ms was reached
    at Timeout.<anonymous> (C:\Program Files (x86)\Auth0\AD LDAP Connector\node_modules\cb\lib\cb.js:19:7)
    at listOnTimeout (internal/timers.js:554:17)

Cause

The AD/LDAP Connector is unable to communicate with the AD/LDAP Server.

Solution

This issue is on the AD/LDAP server. So please troubleshoot why the AD/LDAP connector (installed on a machine in your local environment) is not able to communicate with the AD/LDAP Server of your environment.