Relaunch the software. It should now open without the error.
Navigate to: C:\ProgramData\Zebra\ZebraDesigner 3\Solutions\License (Note: "ProgramData" is a hidden folder). Delete all files within this License folder. : invalid encryption method zebra
This is the most common scenario. It often occurs after a crash, specifically linked to the March 2021 updates . Relaunch the software
Download the latest version of ZebraDesigner 3 from the official Zebra Support page. Newer patches include connectivity and security fixes specifically for these Windows-related issues. 2. Wireless Connectivity Mismatches or aes .
If you are configuring a Zebra printer and receive an "invalid encryption method" error, you likely have an invalid wlan encryption string. The valid methods are usually wep , tkip , or aes .