Hello Ron,
Welcome to the PurpleAir community! I’m sorry that you’re having issues connecting to the Wi-Fi. Once you have connected your sensor to Wi-Fi, your PurpleAir**** network will no longer appear in your list of available networks.
If you have an Eero router, I would recommend reviewing this article: Trouble connecting with an Eero router
If you are not using an Eero router, are there any security settings that could affect the sensor’s ability to connect?
If you still have issues, please contact our support team at contact@purpleair.com with your device ID number.