Wi-Fi Connected but "No Internet" Issue on Ruckus Unleashed R500

[Buddhima]

Hi,

I have a Ruckus Unleashed R500 AP with 20-30 connected devices. The AP gets a DHCP IP from the switch. The issue is that Wi-Fi users lose internet connection randomly (PC shows "No Internet" but stays connected to the SSID). This happens once or twice a day and lasts for some time before it starts working again. LAN users do not have this issue.

What could be causing this?

Thanks!