NetScaler® callback URL configuration
One of the important components of NetScaler integration is to set the Callback URL option properly:
You may encounter a Cannot complete your request error during the StoreFront logon if the callback URL is not set properly. It is recommended to always set the callback URL same as the FQDN to which the certificate is issued.
Note
Don't forget to add a host entry on the StoreFront servers to point the FQDN of your NetScaler Gateway URL to the private IP address of your NS Gateway vServer or create a DNS entry to resolve the FQDN to the NetScaler Gateway vServer private IP.