Applies to ONTAP 9 Active-directory account created on vserver Issue When attempting to modify the discovery mode for a vserver which has an active-directory account created for Domain Tunnel purposes...Applies to ONTAP 9 Active-directory account created on vserver Issue When attempting to modify the discovery mode for a vserver which has an active-directory account created for Domain Tunnel purposes the following error is seen: The CIFS discovery modes "site" and "none" are not supported when an Active Directory account exists for the Vserver