This week I was at a customer to help them with a NetScaler upgrade. The customer was on a 10.5 firmware and wanted (had to) upgrade to 11.1. So far no problem there.. They have a NetScaler Acces Gateway license, no problem either.. They wanted customization on the Gateway portal, hey no problem. They wanted some links and text on the gateway portal, no problem. Uuuh problem!
After upgrading the secondary appliance, failing it over and applying the rewrite rules, nothing appeared on the Gateway portal.