Critical Security Update

To help protect your systems, customers using NI driver software 2026 Q2 or earlier should visit ni.com/ni-pal-update and follow the recommended actions.

NI-XNET 2026 Q1 Bug Fixes

Overview

The following items are notable issues fixed between the release of NI-XNET 2025 Q4 and NI-XNET 2026 Q1, including additional patches and service packs. If you have an issue ID, you can search this list to validate that the issue has been fixed. This is not an exhaustive list of issues fixed in the current version of NI-XNET.

Bug Number

Legacy ID

Description

Details

3304082, 3431155

NI-XNET Bus Monitor on LinuxRT Logs Timestamps in UTC Instead of Local Time

On LinuxRT systems, log files generated by the NI-XNET Bus Monitor record timestamps in Coordinated Universal Time (UTC), whereas on other supported operating systems, timestamps are recorded in local time.

Workaround:

Users may perform post-processing on the log files to manually convert the UTC timestamps to the appropriate local time. Do note that the post-processing should be reverted if the NI-XNET driver is upgraded to a newer version that is no longer affected by this issue.

Reported Version:

NI-XNET: 2025 Q4

Resolved Version:

NI-XNET: 2026 Q1

Added:

Oct 15, 2025

3261560, 3372138

Internal Error During NI-XNET Session Creation with FIBEX Files with Missing Information

When attempting to create a session using a FIBEX file that lacks COMPU-METHOD information within the CODING element, the NI-XNET driver may encounter an internal error. This issue arises due to incomplete signal definition metadata required for session initialization.

Workaround:

Open the affected FIBEX file in the NI-XNET Database Editor and save it. This process automatically adds the missing COMPU-METHOD information, allowing session creation to proceed without error.

Reported Version:

NI-XNET: 2025 Q3

Resolved Version:

NI-XNET: 2026 Q1

Added:

Oct 15, 2025

Additional Patch Information

Installing some patches may require certain additional steps or considerations. Please refer to the following table for more information about patches for this release.

These patches currently do not have any special instructions.

Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).