Only through the proxy
Likely causes
- - Proxy resolves DNS remotely and fails
- - Local resolver blocks lookups
Verified remedy
Test remote DNS with curl --socks5-hostname; try a different endpoint country.
Proxy troubleshooting
Fix err_name_not_resolved with proxy
Ranked causes, ordered diagnostics, and a verified remedy for err_name_not_resolved with proxy - ending with a final connection check.
Quick answer
Fix: ERR_NAME_NOT_RESOLVED through a proxy. Confirm endpoint values, test with curl through the endpoint, apply the matched remedy, then re-verify the exit IP is your assigned endpoint.
Exact symptom text
Causes ranked by likelihood
Ordered diagnostics
Final connection check
When this is the right fit
- Exact symptom text
- Causes ranked by likelihood
- Ordered diagnostics
Who this page is for
Ranked causes, ordered diagnostics, and a verified remedy for err_name_not_resolved with proxy - ending with a final connection check.
Fix: ERR_NAME_NOT_RESOLVED through a proxy. Confirm endpoint values, test with curl through the endpoint, apply the matched remedy, then re-verify the exit IP is your assigned endpoint.
Diagnosis tree
Works direct, fails proxied, one site only
Likely causes
- - Target DNS misconfiguration on that hostname
- - Local hosts-file override
Verified remedy
Compare dig output direct vs through the endpoint; remove stale hosts entries.
Final connection check
- 1Apply the matched remedy
- 2Test the endpoint with curl
- 3Repeat the original action
- 4Confirm the exit IP is the assigned endpoint
Working connection
The action completes and the exit IP matches the endpoint.
Broken connection
If curl also fails, the endpoint is unhealthy: swap to a spare.
Sources
Facts last reviewed 2026-09-01.
Prevent it recurring
DNS failures through a proxy are resolver-path failures; remote DNS via SOCKS5 keeps lookups on the endpoint identity.
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Frequently asked questions
How do I fix err_name_not_resolved with proxy?
Work the diagnosis tree top to bottom, confirm endpoint values, test with curl, then run the final connection check.
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