I relatively recently switched to a new (Ubiquiti) router and created some guest networks on it (both with captive portals). Whenever I change from my WPA2 secured network to one of my guest networks I never receive an evaluate command from Hotspot Helper. I do still see filterScanList commands come in so there isn't an issue with HH not being registered.
Are there any kinds of networks (enterprise captive, etc.) or settings in the network that could prevent the HH evaluate command from firing?