FlyerTalk Forums - View Single Post - Cloudflare Errors (Error 521, 1005, etc.)
Thread: Cloudflare Errors (Error 521, 1005, etc.)
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Old Feb 9, 2021 | 11:57 am
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JDiver
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Originally Posted by PGberkshire
Not sure if its just me, but the website keeps spitting out this error code.
Error 521 is Cloudflare specific, and indicates you were able to connect to Cloudflare but not onward to FlyerTalk. Perhaps Admin will be able to advise you.

“A 521 error happens when we are unable to make a TCP connection to your origin server. ... This is often caused by security or firewall software and happens if the origin server has directly refused Cloudflare's proxy request.“
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