When you access the NetScaler Gateway virtual server, you are presented with the log on screen. After entering the log on details StoreFront does not progress further then the Green spinning circle page.
The following error is recorded in the StoreFront event log:
A request was sent to service 'XAStore' that was detected as passing through a gateway. However no gateways are configured for this service. Request details: X-Citrix-Gateway: X-Citrix-Via: <hostname that resolves to VIP> X-Citrix-Via-VIP: <vip IP> Remote Address: ::1 X-Forwarded-For: <client IP>,<SNIP>
To resolve this issue import the relevant CA into "computer\trusted root certificates" store.
The StoreFront server did not trust the NetScaler Gateway certificate.