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Known update issues

Veeam Backup & Replication 13.1.x: jobs fail or upgrade errors after upgrade or patch

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Community report – not yet confirmed by the vendor: users or trade media report on it (forums, Q&A sites, Reddit, web research), but the vendor has not confirmed the issue (yet). Use this information with caution.

Summary

After patching or upgrading to 13.1.x, users report jobs failing within seconds, an Updater service connection error and failed upgrades from 12.3. These are reported by users, not yet confirmed by the vendor. Release notes for 13.1.2.57 reportedly list fixes for several 13.1 upgrade regressions, but this was not verified against a vendor source.

Symptoms

  • Jobs fail within seconds with host rescan or outdated Data Mover errors (reported for about 70 sites).
  • The Software Update Summary shows an Updater service connection error.
  • Upgrades from 12.3 can fail during the Reverse Proxy installation.

Affected

  • Veeam Backup & Replication 13.1.x after upgrade or patch
  • Upgrades from 12.3 (a similar failure is also reported for 13.0.2.29)

Workaround

No workaround known.

Fix

Not fixed yet. Release notes for 13.1.2.57 reportedly list fixes for several 13.1 upgrade regressions; check the vendor's release notes and KB4738.

Recommendation

Before upgrading or patching, take a configuration backup and test on a non-production system. Check Veeam KB4738 and the release notes for 13.1.2.57. If jobs fail within seconds after an update, check the Data Mover and host rescan status of the affected backup infrastructure hosts. Delay production upgrades from 12.3 until the fixes are confirmed.

Reports from the community and trade media

Reports from forums, Q&A sites, Reddit and trade media – linked only, without the names of the authors; the vendor’s statement is authoritative.

Sources

Compiled from community reports and web research and translated with AI (Claude) – not yet confirmed by the vendor. The vendor’s statements are authoritative. Updated 2 Nov 2026, 00:35.

Where the information comes from

We continuously read the vendors’ official sources, community reports and trade media and summarise them in our own words, with a link to the source:

  • Microsoft: Windows release health (Windows 10/11, Server 2016 to 2025), Windows message center, known issues of Microsoft 365 Apps (Outlook, Excel, Word, PowerPoint), Edge, Intune, Autopilot, Windows 365 and Entra Connect, Microsoft KB articles with timelines, Exchange and Windows IT Pro blogs, optionally Microsoft 365 service health and message center
  • other vendors: Veeam KB, Citrix (known issues), Ubuntu and Debian (regressions), Broadcom (VMware), Fortinet, Cisco, Mozilla, Let’s Encrypt
  • community (title, short excerpt and link only, without the names of the authors): Microsoft Q&A, Microsoft Tech Community (discussions), Veeam R&D Forums, Eleven Forum
  • targeted web research with AI (Claude), e.g. on the updates of the month – this also finds discussions on Reddit and in forums; such entries are labelled as community reports until the vendor confirms them
  • early warning from trade media (title and link only): Born’s Tech and Windows World, BleepingComputer, AskWoody, Windows Latest, Windows Central, gHacks, The Windows Club, Deskmodder, Dr. Windows, WindowsArea, Frankys Web, heise online

Summary and translation with AI (Claude by Anthropic) – without any data of visitors.

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