Ok, let’s see if we can figure it out.
Just to confirm, you created a “Global Key” (allows all actions)?
Assuming you did, let’s check the following:
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Where is your Discourse hosted? Where is your Wordpress hosted?
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Do you have any custom Discourse plugins installed?
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Please install this healthcheck plugin on wordpress:
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Does this plugin detect any critical issues?
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Enable Troubleshooting mode and only enable the wp-disocurse plugin (all other plugins will be disabled). Then try to connect again.
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