The leading cause of PNA failures is problems with the VNA Solid State Drive (SSD). These problems are usually preventable, and in many cases, recoverable (see Recovering from VNA SSD Problems). The following could save you weeks of downtime and the cost of replacing your VNA SSD.
The Microsoft Windows operating system has been modified and optimized by Keysight to improve the performance of the VNA.
Do NOT install a standard version of the Windows operating system on the VNA.
Do NOT change advanced performance settings or group policies.
Do NOT add or delete any hard disk drive partitions on the VNA.
Do NOT modify any of the Keysight software registry entries.
The VNA does NOT have antivirus protection when shipped. Use of an antivirus program is strongly recommended if you connect the VNA to the Internet.
In addition, the use of a firewall could help to protect the VNA from viruses. However, some firewalls could limit DCOM connectivity of the VNA.
The VNA is always shipped with the latest service packs and critical updates that were available at the time that the VNA is produced. We recommend that you maintain the latest available protection for your VNA by automatically accepting and installing the latest critical security patches from the Microsoft Windows Update website: http://windowsupdate.microsoft.com
If your VNA is connected to the Internet, use the Firmware Update to obtain the latest firmware. On the VNA, click System, Service, Firmware Update to automatically update your firmware to the current revision.
If your VNA is NOT connected to the Internet, you must update firmware using a CDROM or pen drive. When updating, NEVER skip a major VNA firmware revision. For example, to update from A.02.xx to A.04.xx, first install any version of A.03.xx, then update to A.04.xx.
Unplugging the power cord, or otherwise removing power when the power button is green, can damage the VNA SSD. Learn more about powering the VNA ON and OFF.
If you are experiencing problems which may be caused by a faulty VNA SSD, please see Recovering from VNA SSD Problems.