WP HTTP Error: couldn’t connect to host for RSS feeds on same domain

Anyone with a similar issue:

First off, try the following after connecting to your webhost via SSH:

ping <yourwebsite>

If you get a “cannot connect to host” issue, there’s a firewall or NAT problem blocking traffic for RSS. Contact your server admin.

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Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)