Word add-ins fail to load: “Couldn’t connect to the catalog server {0}” — Excel add-ins work

Hello,

I am experiencing a problem with Office add-ins in Microsoft Word. No Word add-ins can be loaded, including Mendeley Cite.

The error message says:

“Couldn’t connect to the catalog server {0} for this add-in.”

In German Word Online/Desktop, the message appears as:

„Es konnte keine Verbindung mit dem Katalogserver „{0}“ für dieses Add-In hergestellt werden.“

What I have tested:

• The issue occurs in Word Desktop.
• The issue also occurs in Word Online.
• It happens with multiple Microsoft accounts.
• It happens on multiple devices, including my PC and tablet.
• It also happens when using a mobile hotspot, so it does not seem to be caused by my home network.
• Excel add-ins work correctly.
• The issue appears to affect Word add-ins only.

Because Excel add-ins work, but Word add-ins do not, and because the problem occurs across devices, accounts, and networks, this looks like a Word-specific issue with the Office Add-in Catalog / Microsoft Marketplace connection.

Could Microsoft please check whether there is a current issue with Word accessing the Office Add-in Catalog?

Thank you.

Moved from Windows for home | Windows 11 | Microsoft Store