FSTL151 - Failed to Delete the Fastly ACL Entry

Agent error code #FSTL151 indicates Fastly refused to remove an entry, so an address may still be allowed through after its grant ended.

An entry that is already gone is not an error: Knocknoc treats it as a completed revoke.

Common causes include:

• The token can read the service but cannot write ACL entries (see #FSTL002)
• A transient API failure during the revoke

Steps to Resolve

1. Confirm the API token has write access to the service
2. In the Fastly control panel, open the ACL and check for an entry whose comment starts with knocknoc:, then remove it by hand if it is still there
3. Knocknoc retries the revoke, so a transient failure clears on the next pass

Treat a persistent failure as urgent: the address stays allowed until the entry is removed.

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