To communicate with backup proxy servers, Veeam uses the proprietary service — Veeam.Archiver.Proxy (display name in the services.msc console — Veeam Backup Proxy for Microsoft Office 365 Service) that is installed on a proxy machine during the addition of a new backup proxy server. If this component becomes outdated, you will have to upgrade it manually.
To upgrade the component, do the following:
- Go to Backup Infrastructure > Backup Proxies.
- In the preview pane, select a backup proxy server to upgrade.
- On the Backup Proxy tab, click Upgrade or right-click a backup proxy server and select Upgrade.
To upgrade all backup proxy servers simultaneously, select the Backup Proxies node and click Upgrade.
- Proceed to Select Backup Proxy Server to Upgrade.