RSSO - all communication dropped after waking from sleep

Hi folks,

we successfully implemented Radius SSO (RSSO) for WiFi users against an AD server. However, all of the users (macOS/Windows) experience an issue where FG drops all packets for notebooks after waking from sleep. WiFi shows that it's still connected, but no packets get through. The only way we found to get it to work again is to turn off/on WiFi. Any ideas?