R650 Unleashed 2.4ghz Not Working

[YseanY]

I have a few Ruckus R650's running Unleashed. One day, after I had to reboot my gear, I noticed a few clients going offline and discovered that they all got dropped by one of the R650. The 2.4ghz light is amber and nothing would connect to the 2.4ghz SSID. I tried creating a new 2.4ghz SSID and connecting to that on my iPhone but it is not showing up on the Wifi list (settings are set to broadcast). The separate 5ghz SSID seems to work though. I tried updating to the lastest 200.18.7.1.323, no luck. And I also tried resetting the AP but still no luck. All the other R650 APs are working fine. What could be wrong?