Make sure it is updated to the latest stable firmware version v49. You can try the following to rule out Wi-Fi connectivity issues:
- Place the openSPOT2 close to the Wi-Fi router.
- Make sure the Wi-Fi bandwith is set to max. 20Mhz in the Wi-Fi router (see explanation here:
https://superuser.com/questions/542191/does-moving-my-router-from-20mhz-to-40-mhz-increase-my-wireless-speed
)
- If it still does not work, try switching Wi-Fi channel on your Wi-Fi router. Only channels 1, 6 or 11 should be used (see explanation here:
https://www.metageek.com/training/resources/why-channels-1-6-11.html
)