Wordpress LScache Plugin: Warning: fsockopen():
Last Updated on: Wed, 15 Apr 2026 00:00:02 Hi Since yesterday, every 30 mins, I am receiving an email with this text: Warning: fsockopen(): unable to connect to node5.quic.cloud:443 (Connection timed out) in /home/xxx/public_html/domain.com/wp-content/plugins/litespeed-cache/src/utility.cls.php on line 169 Together, in the LiteSpeed Cache General Settings page I see: There was a problem with retrieving your Domain Key. Please click the Waiting for Refresh button to retry. There are two reasons why we might not be able to communicate with your domain:: 1) The POST callback to https://www.domain.com/wp-json/litespeed/v1/token failed. 2) Our Current Online Server IPs was not allowlisted. Please verify that your other plugins are not blocking REST API calls, allowlist our server IPs, or contact your server admin for assistance.: Please explain, what am I supposed to do, I dont know anything about POST callback oe allowlisted . Thanks Alain Same error since yesterday. HP Warning: fsockopen(): Unable to connect to node5.quic.cloud:443 (Connection timed out) No answer here ? I still have the same problem ? It looks similar to: https://wordpress.org/support/topic/unable-to-request-domain-key-error-503/ so I whitelisted your IPs in CF firewall, just in case, no results I allowlist your IPs in WordFence? no results? Still: Failed to communicate with QUIC.cloud server: The callback validation to your domain failed. Please make sure there is no firewall blocking our servers. Response code: 503 Hi, apologize for the inconvenience this is known issue as some of the nodes are under heavy load we are also working on expanding our nodes best regards, Hi Ok, so there is nothing I can do, just wait ? Any prevision of a fix ? Thanks Alain
LiteCache Rush: Speed comes from using less, not from doing it faster
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