Wireless Test System Instrument Software 1.4.2 Known Issues
Updated Mar 17, 2020
This document contains the Wireless Test System Instrument Software (WTS Software) known issues that were discovered before and since the release of 1.4.2. Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that can be encountered.
Each issue appears as a row in the table and includes the following fields:
Issue ID - The number in at the top of each of the cells in the first column. When you report an issue to NI, you may be given this ID, you can also find IDs posted by NI on the discussion forums or in Knowledge Base articles. "N/A" indicates that there is no ID assigned to the issue.
Issue Title (in italics) - Describes the issue in one sentence or less.
Problem Description - A few sentences which describe the problem in further detail. The brief description given does not necessarily describe the problem in full detail, and it is expected that you may want more information on an issue. If you would like more information on an issue, contact NI and reference the ID number given in the document.
Workaround - Possible ways to work around the problem. The workarounds that appear in the document are not always tested by NI and are not guaranteed to resolve the issue. If a workaround refers you to the NI KnowledgeBase, visit www.ni.com/kb/ and enter the KnowledgeBase number in the search field to locate the specific document.
Reported Version - The earliest version of WTM or WTS Software in which the issue was reported. If you discover the issue appears in an earlier version of WTM or WTS Software than is reported in this field, report the discrepancy to NI to have the field updated.
Resolved Version - Version in which the issue was resolved or was no longer applicable.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).
WTS Software may fail to start up if the WTS Instrument Software License for Qualcomm Connectivity Interface Support is activated without an NI-RFmx WLAN license.
The WTS Instrument Software License for Qualcomm Connectivity Interface Support also requires a valid NI-RFmx WLAN license. You must purchase and activate this license separately. Failure to activate the license can cause WTS Software to report errors at startup and not operate as expected.
Workaround: Ensure you purchase and activate the NI-RFmx WLAN license.
In WTS Software, the instrument is unresponsive after sending a misformatted string using raw sockets.
The string must be sent using one of the following ways:
With '' (single plings)
With "" (double plings)
If you use a pling in the beginning of the string, you must also use the same pling in the end of the string. If you do not use the same string format and use raw sockets as communication method, the client can no longer communicate with the instrument.
Workaround: Use the same pling at the beginning and end of the strings. For example:
In WTS Software, auto broadcasting might fail during the first few signal generations.
When executing scenarios with auto broadcasting enabled, clients might not be joined or might throw an error during the first one to two signal generations, depending on how the signal is generated. This is related to the first time execution speed of some commands after the clients are initially joined by calling the SYSTem:RFSG:CONCurrency:TESTrun Start command, and also depends on the configured join time.
Workaround: Perform either of the following options as a workaround.
Execute the test plan for each virtual instrument alone once before using the auto broadcasting functionality. The auto broadcasting commands may be in the test plan during this single execution but they should not find another client to join with.
In WTS Software, the WTS Instrument Interface terminates when the software restarts or is shutdown.
The WTS Instrument Interface requires a data connection to the WTS Software. When the connection to the WTS Software is lost, either because the instrument restarts or the software is terminated, all connected local and remote instances of the WTS Instrument Interface are terminated.
Workaround: Disconnect all instances of the WTS Instrument Interface before issuing a restart command.
Contact NI regarding this document or issues in the document. If you contact NI in regards to a specific issue, reference the ID number given in the document. The ID number contains the current issue ID number as well as the legacy ID number (use the current ID number when contacting NI). You can contact us through any of the normal support channels including phone, email, or the discussion forums. Visit the NI Website to contact us. Also contact us if you find a workaround for an issue that is not listed in the document.