Can misconfigured DNS cause a 'connect ECONNREFUSED' error when connecting to MongoDB?

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Grade: Education Subject: Support
Can misconfigured DNS cause a 'connect ECONNREFUSED' error when connecting to MongoDB?
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Yes, a misconfigured DNS can absolutely lead to 'connect ECONNREFUSED'. If the hostname in your connection string can't be resolved to a valid IP address by the client's DNS server, the connection will fail. Verify the hostname resolution using `nslookup` or `ping`.