Mastodon Error ‘Could Not Verify Authenticity’ on Status Update: Fix

You try to post a status update on Mastodon and see the error message “Could not verify authenticity.” This error stops the post from being published and often appears after a network hiccup or session timeout. The cause is a mismatch between the signature your client sends and what the server expects. This article explains … Read more

How to Fix Mastodon Error ‘Instance Not Reachable’ From Federation Check

When you run a federation check on your Mastodon instance, the tool may return the error “Instance Not Reachable” for another server. This error means your instance cannot establish a connection to that remote server. The cause is usually a firewall rule, a DNS misconfiguration, or the remote instance blocking your IP address. This article … Read more

Mastodon Error ‘Statuses Could Not Be Downloaded’ on Re-Import: Fix

When you export your Mastodon archive and try to re-import it into the same or a different instance, the process may fail with the error message “Statuses could not be downloaded.” This error typically occurs because the archive file is malformed, the import server cannot reach the original instance, or the archive references deleted or … Read more