Symptoms
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The Extensions page cannot be opened with one of the following messages:
PLESK_ERROR: Error: Unable to connect to the extensions catalog: Connection timed out after 30001 milliseconds
PLESK_WARN: Internal server error Retry
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Unable to install Plesk Migrator via Tools and Settings > Updates and Upgrades:
PLESK_ERROR: Error: Unable to install the extension: Executing /usr/local/psa/tmp/moduleR2GaBC/plib/scripts/pre-install.php failed: It is impossible to install Plesk Migrator on Linux servers via Plesk extensions catalog. Please install it by means of Plesk Installer.
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Unable to install Plesk Migrator via Plesk Installer with the following error message:
The component plesk/pmm is not available.
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Unable to install any extension via CLI, for example:
# plesk bin extension -i imunify360
Connection timed out after 30000 millisecondsexit status 1
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Plesk’s main page (Home) loads slow.
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Additional symptoms:
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The following error messages can be found in /var/log/plesk/panel.log:
INFO [panel] Retrieving Extensions Catalog feed: https://ext.plesk.com/api/v4/packages?platform=unix
ERR [panel] PleskException: connect() timed out!
file: /usr/local/psa/admin/plib/Extension/Catalog.php -
The following error messages can be found in /var/log/plesk/install/autoinstaller3.log:
Downloading extensions catalog feed...
Debug: download extension catalog feed: https://ext.plesk.com/api/v2/packages?platform=unix&version=12.5.30&ai-compatible
Failed to collect extension catalog packages: Failed to download extension catalog feed by URL https://ext.plesk.com/api/v2/packages?platform=unix&version=12.5.30&ai-compatible:
connect() timed out!
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Cause
ext.plesk.com is not reachable from a Plesk server:
# wget ext.plesk.com
–2018-01-01 00:00:00– http://ext.plesk.com/
Resolving ext.plesk.com… 185.87.24.173
Connecting to ext.plesk.com|185.87.24.173|:80… failed: Connection timed out.
Retrying.
Resolution
Allow connections to ext.plesk.com. Contact your network administrator for assistance.