Proxy troubleshooting
Ranked causes, ordered diagnostics, and a verified remedy for facebook checkpoint loop - ending with a final connection check.
Quick answer
Fix: Facebook checkpoint loop while using 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.
Ranked causes, ordered diagnostics, and a verified remedy for facebook checkpoint loop - ending with a final connection check.
Fix: Facebook checkpoint loop while using 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.
Likely causes
Verified remedy
Fix all signals together: same static endpoint, same profile, same timezone. Then pass the checkpoint once; it should not return.
Likely causes
Verified remedy
Return the account to its original endpoint mapping or warm a new identity slowly; remove endpoint sharing.
The original action completes and the exit IP matches the endpoint.
If curl through the endpoint also fails, the problem is endpoint-level: check dashboard status or swap to a spare endpoint.
Facts last reviewed 2026-09-01.
Consistency ends checkpoint loops: one profile, one endpoint, one timezone, no rotation.
Work the diagnosis tree top to bottom: confirm endpoint values, test with curl through the endpoint, apply the remedy, then run the final connection check.
Recurring proxy failures usually trace to an unstable mapping - rotating endpoints or shared addresses. A dedicated static endpoint per profile makes behavior predictable.
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