That’s a little odd – I can understand the reason behind it but nowhere on the ZS website or documentation did it say I needed 2 boxes, nor has it been suggested anywhere that I’d need 2 boxes.
I’m still inclined to get it all working though as it could be a benefit to the school I work in.
If indeed you cannot have Captive Portal AND Transparent Proxy on the same box, then if I could simply point the Captive Portal end at an existing proxy that would do nicely.
Az