Hello
Do you see the StarGo WiFi network name in your device WiFi Network search?
If the previous user didn't change it, the StarGo WiFi network comes as default with a name like "StarGo_xxx" (there should be the StarGo Serial Number replacing the three X typed as a sample here).
Which device are you using to try the connection? PC, laptop, smartphone, tablet? With which kind of Operative System?
Please let us know so we can provide you more suggestions on how to troubleshoot it.
Best regards
Stefano
Avalon Instruments Team