Let's see what we can do, Joe03. Have you tried restarting your MiFi device or moving it to a different section of the house? So we can continue troubleshooting, what type of computer are you using, Mac or Windows? Additionally, what version of software does your computer have?
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Have you used the Reset button under the battery cover, to reset the Jetpack? Are you able to connect to the default SSID? Can you bring up the user interface at http://192.168.1.1 and login using the default Wi-Fi Password?